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	#	Name	Tags	Difficulty	Solved by
✓	dn_s21_q001	Value of i^i 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	complex-numbers calculus	1500	x0
✓	dn_s21_q002	Compare pi^e vs e^pi 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	calculus inequalities	1400	x0
✓	dn_s21_q003	Convexity of exponential (AM-GM-like) 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	calculus convexity inequalities	1200	x0
✓	dn_s21_q004	Solve x^6 = 64 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	algebra complex-numbers	1100	x0
✓	dn_s21_q005	Derivative of x^x 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	calculus logarithmic-differentiation	1100	x0
✓	dn_s21_q006	Nested radical 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	algebra fixed-point	1100	x0
✓	dn_s21_q007	Power tower equals 2 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	algebra fixed-point	1300	x0
✓	dn_s21_q008	Convergence of three series 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	calculus series convergence	1200	x0
✓	dn_s21_q009	Integral 1/(1+x^2) 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	calculus integration	800	x0
✓	dn_s21_q010	Two integrals xln(x) and xe^x 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	calculus integration by-parts	1000	x0
✓	dn_s21_q011	Integral x^n*ln(x) 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	calculus integration by-parts	1100	x0
✓	dn_s21_q012	Integral of (ln x)^n 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	calculus integration by-parts	1400	x0
✓	dn_s21_q013	Solve linear ODE 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	ode calculus	1200	x0
✓	dn_s21_q014	Logistic equation 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	ode calculus logistic	1300	x0
✓	dn_s21_q015	Derive Black-Scholes PDE 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	black-scholes pde derivation	1900	x0
✓	dn_s22_q001	Correlation matrix positive semidefinite 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra correlation psd	1300	x0
✓	dn_s22_q002	Eigenvalues of given correlation matrix 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra correlation covariance	1100	x0
✓	dn_s22_q003	Bounds on values of p in n x n correlation matrix 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra correlation psd bounds	1700	x0
✓	dn_s22_q004	Eigenvalues of n x n matrix with real entries 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra eigenvalues	1200	x0
✓	dn_s22_q005	Find square root of 2x2 matrix 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra matrix-square-root	1500	x0
✓	dn_s22_q006	Reconstruct matrix from eigenvectors 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra eigenvectors	1400	x0
✓	dn_s22_q007	AB vs BA same size 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra trace	1000	x0
✓	dn_s22_q008	AB-BA equal identity 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra trace commutator	1500	x0
✓	dn_s22_q009	Probability matrix 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra stochastic-matrices	1200	x0
✓	dn_s22_q010	Find rho range for 3x3 correlation 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra correlation psd bounds	1600	x0
✓	dn_s23_q001	Arbitrage with three calls 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	arbitrage options convexity	1700	x0
✓	dn_s23_q002	150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options binomial-pricing	1500	x0
✓	dn_s23_q003	ATM option price ratio worth 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options risk-neutral binomial-pricing	1600	x0
✓	dn_s23_q004	Risk-neutral pricing concept 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	risk-neutral concepts	1300	x0
✓	dn_s23_q005	Derive Black-Scholes formula 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	black-scholes derivation concepts	1800	x0
✓	dn_s23_q006	Stock month then put option payoff 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options put-call-parity	1700	x0
✓	dn_s23_q007	Price doubles, value of call 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options delta greeks	1500	x0
✓	dn_s23_q008	Delta value range 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options delta greeks	1200	x0
✓	dn_s23_q009	Delta of ATM call 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options delta greeks	1400	x0
✓	dn_s23_q010	Put-call parity statement and proof 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options put-call-parity	1400	x0
✓	dn_s23_q011	Time value of European call change with vol 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options time-value	1600	x0
✓	dn_s23_q012	Implied volatility from option price 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options implied-vol volatility-smile	1500	x0
✓	dn_s23_q013	Gamma of an option 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options gamma greeks	1600	x0
✓	dn_s23_q014	European call put written same time 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options put-call-parity	1700	x0
✓	dn_s23_q015	Implied vol of asset with 30 percent six month vol 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	volatility scaling	1300	x0
✓	dn_s23_q016	Value of interest rate swap 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	interest-rates swaps	1600	x0
✓	dn_s23_q017	Bond duration vs yield curve shift 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	bonds duration yield	1400	x0
✓	dn_s23_q018	Five-year bond duration sensitivity 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	bonds duration	1300	x0
✓	dn_s23_q019	Forward contract definition 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	forwards concepts	1200	x0
✓	dn_s23_q020	Forward price for treasury vs commodity 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	forwards futures commodities	1700	x0
✓	dn_s23_q021	Eurodollar futures 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	futures interest-rates	1500	x0
✓	dn_s23_q022	Forward vs futures differences 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	forwards futures	1500	x0
✓	dn_s23_q023	VaR of all-bond portfolio with 99% daily 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	risk var	1700	x0
✓	dn_s23_q024	Box spread arbitrage 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options arbitrage box-spread	1700	x0
✓	dn_s23_q025	Implied vol exploiting straddle 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options hedging volatility-arbitrage	1900	x0
✓	dn_s23_q026	Replication strategy puzzle 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	options replication paradox	1900	x0
✓	dn_s24_q001	How to declare an array 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++arrays	800	x0
✓	dn_s24_q002	Address of variable 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++pointers	800	x0
✓	dn_s24_q003	Declare array of pointers 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++pointers arrays	1000	x0
✓	dn_s24_q004	const pointer vs pointer to const 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++pointers const	1100	x0
✓	dn_s24_q005	Declare dynamic array 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++arrays memory	900	x0
✓	dn_s24_q006	Pass by reference syntax 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++functions	800	x0
✓	dn_s24_q007	Pass by reference 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++references	900	x0
✓	dn_s24_q008	Pass read-only argument 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++references const	900	x0
✓	dn_s24_q009	Pointer vs reference differences 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++pointers references	1100	x0
✓	dn_s24_q010	Default value for parameter 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++functions defaults	900	x0
✓	dn_s24_q011	Template function 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++templates	1100	x0
✓	dn_s24_q012	Pointer to function 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++function-pointers	1100	x0
✓	dn_s24_q013	Compiler vs explicit conversion 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++explicit constructors	1300	x0
✓	dn_s24_q014	Uses of static keyword 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++static	1300	x0
✓	dn_s24_q015	Can static member be const 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++static const	1400	x0
✓	dn_s24_q016	Member initialization list 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++constructors initializer-list	1300	x0
✓	dn_s24_q017	Copy constructor with pointer members 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++copy-constructor rule-of-three	1400	x0
✓	dn_s24_q018	Output of code snippet 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++memory double-free rule-of-three	1500	x0
✓	dn_s24_q019	Overload an operator 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++operator-overloading	1100	x0
✓	dn_s24_q020	Smart pointers 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++smart-pointers memory	1300	x0
✓	dn_s24_q021	Encapsulation 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++oop	900	x0
✓	dn_s24_q022	Polymorphism 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++oop	1000	x0
✓	dn_s24_q023	Inheritance 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++oop	900	x0
✓	dn_s24_q024	Virtual function and pure virtual 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++virtual polymorphism	1200	x0
✓	dn_s24_q025	Virtual destructors 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	c++virtual-destructor constructors	1300	x0
✓	dn_s24_q026	Factorial function 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	coding recursion	800	x0
✓	dn_s24_q027	Largest sum subarray 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	coding arrays kadane	1500	x0
✓	dn_s24_q028	Prime factors of integer 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	coding number-theory	1200	x0
✓	dn_s24_q029	Swap bits at indices i and j 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	coding bits	1400	x0
✓	dn_s24_q030	Reverse linked list 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	coding linked-list	1300	x0
✓	dn_s24_q031	Reverse string with parentheses 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	coding strings stack	1200	x0
✓	dn_s24_q032	Height of arbitrary binary tree 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	coding trees	1100	x0
✓	dn_s24_q033	N-th Fibonacci 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	coding fibonacci dp	800	x0
✓	dn_s25_q001	Standard deviation of MC estimate 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	monte-carlo pi-estimation	1300	x0
✓	dn_s25_q002	Independent standard normal generation 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	monte-carlo rng normal-sampling	1300	x0
✓	dn_s25_q003	Geometric Brownian motion stock generation 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	monte-carlo gbm	1400	x0
✓	dn_s25_q004	Generate sample from 12 independent uniforms 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	monte-carlo central-limit normal-sampling	1300	x0
✓	dn_s25_q005	Convergence rate of Monte Carlo 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	monte-carlo convergence	1200	x0
✓	dn_s25_q006	Variance reduction techniques 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	monte-carlo variance-reduction	1300	x0
✓	dn_s25_q007	Correlated normal random variables 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	monte-carlo cholesky correlation	1400	x0
✓	dn_s25_q008	Convergence of Newton's method 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	numerical-methods newton convergence	1300	x0
✓	dn_s25_q009	Finite difference and trinomial trees 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	numerical-methods finite-difference trinomial-trees	1500	x0
✓	dn_s25_q010	LU vs Cholesky 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra lu cholesky	1300	x0
✓	dn_s25_q011	LU decomposition without pivoting 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	linear-algebra lu pivoting	1500	x0
✓	dn_s26_q001	Exponential distribution 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability exponential	1000	x0
✓	dn_s26_q002	Sum of independent exponentials greater than X 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability exponential independence	1400	x0
✓	dn_s26_q003	Mean and variance of Poisson 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability poisson	900	x0
✓	dn_s26_q004	Point uniformly in unit disk 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability geometric	1300	x0
✓	dn_s26_q005	Conditional probability X<Y given uniforms 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability joint-normal conditional	1700	x0
✓	dn_s26_q006	Lognormal product 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability lognormal	1100	x0
✓	dn_s26_q007	Normal CDF related to Phi 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability normal cdf	1700	x0
✓	dn_s26_q008	Law of large numbers 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability concepts lln	1100	x0
✓	dn_s26_q009	Central limit theorem 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability concepts clt	1100	x0
✓	dn_s26_q010	Martingale and option pricing 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability martingale option-pricing	1500	x0
✓	dn_s26_q011	Why (dW)^2 = dt 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus ito concepts	1500	x0
✓	dn_s26_q012	Expectation of W*dW 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus wiener-process expectations	1400	x0
✓	dn_s26_q013	Variance of W*dW 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus wiener-process variance	1400	x0
✓	dn_s26_q014	Ito integrals of W and W^2 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus ito-integral	1500	x0
✓	dn_s26_q015	Distribution of integral of t dW 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus ito-integral distribution	1700	x0
✓	dn_s26_q016	Mean and variance of integral W^2 dW 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus ito-integral mean-variance	1700	x0
✓	dn_s26_q017	Variance of stochastic integral with sqrt(t) 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus ito-integral variance	1900	x0
✓	dn_s26_q018	E[e^(cW_t)] 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus wiener-process mgf	1300	x0
✓	dn_s26_q019	Variance of integral with deterministic integrand 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus ito-isometry	1400	x0
✓	dn_s26_q020	X_t = integral W^2 ds martingale? 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus martingale	1600	x0
✓	dn_s26_q021	Ito process 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus concepts	1300	x0
✓	dn_s26_q022	Ito's lemma 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus concepts ito-lemma	1400	x0
✓	dn_s26_q023	X_t = W_t^3 - 3tW_t martingale check 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus martingale ito-lemma	1700	x0
✓	dn_s26_q024	N_t = W_t^2 - 2tW_t martingale? 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus martingale ito-lemma	1700	x0
✓	dn_s26_q025	Girsanov's theorem 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus girsanov change-of-measure	1700	x0
✓	dn_s26_q026	Martingale representation theorem 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus martingale-representation	1900	x0
✓	dn_s26_q027	Solve dX = (a + bX)dt + sdW 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus sde	1500	x0
✓	dn_s26_q028	Solve two SDEs 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus sde gbm	1800	x0
✓	dn_s26_q029	Heston model 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus stochastic-vol heston	2000	x0
✓	dn_s26_q030	Density of standard normal integrand 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	probability normal gaussian-integral	1500	x0
✓	dn_s26_q031	2D BM hitting line and inner/outer circle 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus 2d-brownian hitting-times	2200	x0
✓	dn_s26_q032	Density under change of measure 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	stochastic-calculus girsanov change-of-measure	2100	x0
✓	dn_s27_q001	Ants on triangle collision 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser combinatorics fibonacci	1700	x0
✓	dn_s27_q002	Box of pancakes probability uphill 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser probability conditional	1300	x0
✓	dn_s27_q003	Heads vs tails - Alice/Bob coin flips 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser probability symmetry	1700	x0
✓	dn_s27_q004	Restaurant coin flip biased 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser probability fair-from-biased	1400	x0
✓	dn_s27_q005	Coin toss expected tosses to get heads 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser probability expected-value	1000	x0
✓	dn_s27_q006	Coin tosses expected sequence head tail 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser probability expected-value states	1500	x0
✓	dn_s27_q007	Biased coin biased with 25% prob heads 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser probability expected-value	1100	x0
✓	dn_s27_q008	Fibonacci-like fair coin tossing 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser probability fibonacci	1900	x0
✓	dn_s27_q009	Highest floor egg drop with two eggs 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser search egg-drop	1700	x0
✓	dn_s27_q010	Ant in corner of cube 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser geometry shortest-path	1400	x0
✓	dn_s27_q011	Cube cut into 1000 cubes 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser geometry combinatorics	1300	x0
✓	dn_s27_q012	Fox Mulder large circular field 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser pursuit geometry	2100	x0
✓	dn_s27_q013	Two subway stations frequency 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser scheduling	1500	x0
✓	dn_s27_q014	Cut off with no minute, hour clocks 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser branching-process	1700	x0
✓	dn_s27_q015	Pick two distinct elements from set 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser combinatorics probability	1500	x0
✓	dn_s27_q016	Alice writes two distinct numbers 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser probability strategy	1800	x0
✓	dn_s27_q017	Number of digits 2^125 in base 10 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser log numeric	1700	x0
✓	dn_s27_q018	Arrange numbers 1..2015 cycle equal sums 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser combinatorics alternating-sum	1900	x0
✓	dn_s27_q019	Mr and Mrs Jones inviting four couples 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser graph logic	1800	x0
✓	dn_s27_q020	NYC and SF bridge tolls 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser betting binomial	1900	x0
✓	dn_s27_q021	Heavy yellow balls 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser weighing	1700	x0
✓	dn_s27_q022	10 coins find treasure with magic coins 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser search comparisons	1500	x0
✓	dn_s27_q023	Distinct numbers from cubes 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser algorithm min-max	1600	x0
✓	dn_s27_q024	Cube jump vertex Markov-chain 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser markov-chain expected-value	1700	x0
✓	dn_s27_q025	Number summary statistics from sample without writing them 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser expected-value stopping-time	1800	x0
✓	dn_s27_q026	150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser renewal-process exponential	1700	x0
✓	dn_s27_q027	Random walk 1D until n 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser random-walk gamblers-ruin	1500	x0
✓	dn_s27_q028	Stick break into two pieces 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser geometric-probability uniform	1300	x0
✓	dn_s27_q029	Stick break into three pieces (triangle?) 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser geometric-probability triangle	1700	x0
✓	dn_s27_q030	Manhole cover round 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser geometry classic	1100	x0
✓	dn_s27_q031	Clock hands first match 12 o'clock 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser geometry clocks	1300	x0
✓	dn_s27_q032	Three light switches in room 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser logic	1500	x0
✓	dn_s27_q033	2009 nine digit number missing digit 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser number-theory digital-root	1700	x0
✓	dn_s27_q034	Alice and Bob stand at opposite ends 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser ants classic	1600	x0
✓	dn_s27_q035	30 people in party 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser permutations cycles	1500	x0
✓	dn_s27_q036	Sum of digits of 2019 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser number-theory digital-root	1100	x0
✓	dn_s27_q037	Find 2019 consecutive positive integers that are not prime 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser number-theory factorial	1600	x0
✓	dn_s27_q038	100 coins 4 fake balance 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser weighing coins	1700	x0
✓	dn_s27_q039	Pair of 6-sided fair dice rolls 150 Most Frequently Asked Questions on Quant Interviews (Stefanica, Radoicic, Wang) · Ch 2 · Questions	brainteaser dice sicherman	1900	x0
✓	gb_ch02_q001	Screwy pirates Green Book · Ch 2 · Brain Teasers	brain-teaser game-theory backward-induction classic	1500	x0
✓	gb_ch02_q002	Tiger and sheep Green Book · Ch 2 · Brain Teasers	brain-teaser game-theory induction	1300	x0
✓	gb_ch02_q003	River crossing Green Book · Ch 2 · Brain Teasers	brain-teaser logic optimization classic	1100	x0
✓	gb_ch02_q004	Birthday problem (Cheryl-style) Green Book · Ch 2 · Brain Teasers	brain-teaser logic deduction classic	1400	x0
✓	gb_ch02_q005	Card game (dealer always wins) Green Book · Ch 2 · Brain Teasers	brain-teaser card-game symmetry invariant	1200	x0
✓	gb_ch02_q006	Burning ropes Green Book · Ch 2 · Brain Teasers	brain-teaser logic classic	1000	x0
✓	gb_ch02_q007	Defective ball Green Book · Ch 2 · Brain Teasers	brain-teaser logic weighing classic	1700	x0
✓	gb_ch02_q008	Trailing zeros Green Book · Ch 2 · Brain Teasers	brain-teaser number-theory factorials	900	x0
✓	gb_ch02_q009	Horse race Green Book · Ch 2 · Brain Teasers	brain-teaser logic tournament optimization classic	1500	x0
✓	gb_ch02_q010	Infinite sequence Green Book · Ch 2 · Brain Teasers	brain-teaser algebra self-similar	1000	x0
✓	gb_ch02_q011	Box packing Green Book · Ch 2 · Brain Teasers	brain-teaser combinatorics parity coloring	1700	x0
✓	gb_ch02_q012	Calendar cubes Green Book · Ch 2 · Brain Teasers	brain-teaser thinking-out-of-box classic	1400	x0
✓	gb_ch02_q013	Door to offer Green Book · Ch 2 · Brain Teasers	brain-teaser logic classic	1300	x0
✓	gb_ch02_q014	Message delivery Green Book · Ch 2 · Brain Teasers	brain-teaser logic cryptography-analogy	1200	x0
✓	gb_ch02_q015	Last ball Green Book · Ch 2 · Brain Teasers	brain-teaser invariant parity classic	1100	x0
✓	gb_ch02_q016	Light switches Green Book · Ch 2 · Brain Teasers	brain-teaser logic encoding classic	1100	x0
✓	gb_ch02_q017	Quant salary Green Book · Ch 2 · Brain Teasers	brain-teaser cryptography-analogy secure-computation	1300	x0
✓	gb_ch02_q018	Coin piles Green Book · Ch 2 · Brain Teasers	brain-teaser symmetry invariant classic	1200	x1
✓	gb_ch02_q019	Mislabeled bags Green Book · Ch 2 · Brain Teasers	brain-teaser logic labels classic	1100	x0
✓	gb_ch02_q020	Wise men Green Book · Ch 2 · Brain Teasers	brain-teaser logic communication classic	1700	x0
✓	gb_ch02_q021	Clock pieces Green Book · Ch 2 · Brain Teasers	brain-teaser summation partition	1400	x0
✓	gb_ch02_q022	Missing integers Green Book · Ch 2 · Brain Teasers	brain-teaser algorithms summation	1300	x0
✓	gb_ch02_q023	Counterfeit coins I Green Book · Ch 2 · Brain Teasers	brain-teaser weighing encoding classic	1300	x0
✓	gb_ch02_q024	Glass balls Green Book · Ch 2 · Brain Teasers	brain-teaser optimization binary-search-variant classic	1500	x0
✓	gb_ch02_q025	Matching socks Green Book · Ch 2 · Brain Teasers	brain-teaser pigeonhole classic	800	x0
✓	gb_ch02_q026	Handshakes Green Book · Ch 2 · Brain Teasers	brain-teaser pigeonhole graph-theory classic	1100	x0
✓	gb_ch02_q027	Have we met before? Green Book · Ch 2 · Brain Teasers	brain-teaser pigeonhole ramsey-theory classic	1500	x0
✓	gb_ch02_q028	Ants on a square Green Book · Ch 2 · Brain Teasers	brain-teaser pigeonhole geometry	1300	x0
✓	gb_ch02_q029	Counterfeit coins II Green Book · Ch 2 · Brain Teasers	brain-teaser encoding ternary weighing	1500	x0
✓	gb_ch02_q030	Prisoner problem Green Book · Ch 2 · Brain Teasers	brain-teaser modular-arithmetic parity classic	1600	x0
✓	gb_ch02_q031	Division by 9 Green Book · Ch 2 · Brain Teasers	brain-teaser modular-arithmetic number-theory	900	x0
✓	gb_ch02_q032	Chameleon colors Green Book · Ch 2 · Brain Teasers	brain-teaser modular-arithmetic invariant classic	1600	x0
✓	gb_ch02_q033	Coin split problem Green Book · Ch 2 · Brain Teasers	brain-teaser induction invariant combinatorics	1500	x0
✓	gb_ch02_q034	Chocolate bar problem Green Book · Ch 2 · Brain Teasers	brain-teaser induction invariant classic	1000	x0
✓	gb_ch02_q035	Race track Green Book · Ch 2 · Brain Teasers	brain-teaser induction graph-theory classic	1500	x0
✓	gb_ch02_q036	Irrational number Green Book · Ch 2 · Brain Teasers	brain-teaser proof-by-contradiction number-theory classic	900	x0
✓	gb_ch02_q037	Rainbow hats Green Book · Ch 2 · Brain Teasers	brain-teaser modular-arithmetic proof-by-contradiction classic	1800	x0
✓	gb_ch03_q001	Basics of derivatives Green Book · Ch 3 · Calculus and Linear Algebra	calculus derivative chain-rule logarithm	1300	x0
✓	gb_ch03_q002	Maximum and minimum Green Book · Ch 3 · Calculus and Linear Algebra	calculus optimization logarithm monotonicity	1400	x0
✓	gb_ch03_q003	L'Hospital's rule Green Book · Ch 3 · Calculus and Linear Algebra	calculus limits lhospitals-rule	1000	x0
✓	gb_ch03_q004	Basics of integration (ln x) Green Book · Ch 3 · Calculus and Linear Algebra	calculus integration integration-by-parts	1000	x0
✓	gb_ch03_q005	Basics of integration (sec x) Green Book · Ch 3 · Calculus and Linear Algebra	calculus integration trigonometry	1300	x0
✓	gb_ch03_q006	Applications of integration (two cylinders) Green Book · Ch 3 · Calculus and Linear Algebra	calculus integration volume geometry	1500	x0
✓	gb_ch03_q007	Snow plow problem Green Book · Ch 3 · Calculus and Linear Algebra	calculus differential-equations applied classic	1700	x0
✓	gb_ch03_q008	Expected value using integration Green Book · Ch 3 · Calculus and Linear Algebra	calculus integration normal-distribution expectation	1400	x0
✓	gb_ch03_q009	Gaussian integral Green Book · Ch 3 · Calculus and Linear Algebra	calculus integration gaussian polar-coordinates	1500	x0
✓	gb_ch03_q010	Taylor series — i^i Green Book · Ch 3 · Calculus and Linear Algebra	calculus complex-numbers taylor-series eulers-formula	1200	x0
✓	gb_ch03_q011	Bernoulli inequality via Taylor Green Book · Ch 3 · Calculus and Linear Algebra	calculus taylor-series induction bernoulli-inequality	1300	x0
✓	gb_ch03_q012	Newton's method — square root Green Book · Ch 3 · Calculus and Linear Algebra	calculus newtons-method root-finding numerical-methods	1100	x0
✓	gb_ch03_q013	Alternative root-finding algorithms Green Book · Ch 3 · Calculus and Linear Algebra	calculus root-finding numerical-methods bisection secant	1200	x0
✓	gb_ch03_q014	Lagrange multipliers — distance to plane Green Book · Ch 3 · Calculus and Linear Algebra	calculus lagrange-multipliers optimization geometry	1300	x0
✓	gb_ch03_q015	Separable ODE (exponential) Green Book · Ch 3 · Calculus and Linear Algebra	calculus ode separable-equation	1100	x0
✓	gb_ch03_q016	Separable ODE (substitution) Green Book · Ch 3 · Calculus and Linear Algebra	calculus ode substitution	1400	x0
✓	gb_ch03_q017	First-order linear ODE Green Book · Ch 3 · Calculus and Linear Algebra	calculus ode linear-equation integrating-factor	1300	x0
✓	gb_ch03_q018	Homogeneous linear ODE Green Book · Ch 3 · Calculus and Linear Algebra	calculus ode homogeneous-equation characteristic-equation	1400	x0
✓	gb_ch03_q019	Nonhomogeneous linear ODEs Green Book · Ch 3 · Calculus and Linear Algebra	calculus ode nonhomogeneous method-of-undetermined-coefficients	1400	x0
✓	gb_ch03_q020	Vectors — correlation bounds via geometry Green Book · Ch 3 · Calculus and Linear Algebra	linear-algebra vectors correlation geometric-interpretation	1500	x0
✓	gb_ch03_q021	Linear least squares algorithm Green Book · Ch 3 · Calculus and Linear Algebra	linear-algebra qr-decomposition least-squares numerical-methods	1500	x0
✓	gb_ch03_q022	Eigenvalues and eigenvectors of a 2x2 matrix Green Book · Ch 3 · Calculus and Linear Algebra	linear-algebra eigenvalues eigenvectors matrix	1100	x0
✓	gb_ch03_q023	Correlation bounds via positive semidefiniteness Green Book · Ch 3 · Calculus and Linear Algebra	linear-algebra positive-semidefinite correlation sylvesters-criterion	1600	x0
✓	gb_ch03_q024	Generate correlated normals via Cholesky Green Book · Ch 3 · Calculus and Linear Algebra	linear-algebra cholesky-decomposition monte-carlo correlation normal-distribution	1300	x0
✓	gb_ch04_q001	Coin toss game Green Book · Ch 4 · Probability Theory	probability symmetry coin-toss	1400	x0
✓	gb_ch04_q002	Card game Green Book · Ch 4 · Probability Theory	probability symmetry card-game combinatorics	1400	x0
✓	gb_ch04_q003	Drunk passenger Green Book · Ch 4 · Probability Theory	probability symmetry classic	1500	x0
✓	gb_ch04_q004	N points on a circle Green Book · Ch 4 · Probability Theory	probability geometric-probability symmetry	1700	x0
✓	gb_ch04_q005	Poker hands Green Book · Ch 4 · Probability Theory	probability combinatorics poker card-game	1200	x0
✓	gb_ch04_q006	Hopping rabbit Green Book · Ch 4 · Probability Theory	combinatorics recursion fibonacci induction	1100	x0
✓	gb_ch04_q007	Screwy pirates 2 Green Book · Ch 4 · Probability Theory	combinatorics secret-sharing cryptography	1700	x0
✓	gb_ch04_q008	Chess tournament Green Book · Ch 4 · Probability Theory	probability tournament combinatorics conditional	1600	x0
✓	gb_ch04_q009	Application letters Green Book · Ch 4 · Probability Theory	probability combinatorics inclusion-exclusion derangement	1500	x0
✓	gb_ch04_q010	Birthday problem Green Book · Ch 4 · Probability Theory	probability birthday-problem classic	1100	x0
✓	gb_ch04_q011	100th digit Green Book · Ch 4 · Probability Theory	number-theory binomial-theorem approximation	1700	x0
✓	gb_ch04_q012	Cubic of integer Green Book · Ch 4 · Probability Theory	number-theory modular-arithmetic probability	1500	x0
✓	gb_ch04_q013	Boys and girls Green Book · Ch 4 · Probability Theory	probability conditional bayes classic	1400	x0
✓	gb_ch04_q014	All-girl world? Green Book · Ch 4 · Probability Theory	probability expectation common-misconception independence	1300	x0
✓	gb_ch04_q015	Unfair coin Green Book · Ch 4 · Probability Theory	probability bayes conditional	1300	x0
✓	gb_ch04_q016	Fair probability from an unfair coin Green Book · Ch 4 · Probability Theory	probability symmetry construction classic	1300	x0
✓	gb_ch04_q017	Dart game Green Book · Ch 4 · Probability Theory	probability symmetry order-statistics	1500	x0
✓	gb_ch04_q018	Birthday line Green Book · Ch 4 · Probability Theory	probability birthday-problem optimization conditional	1700	x0
✓	gb_ch04_q019	Dice order Green Book · Ch 4 · Probability Theory	probability dice combinatorics	1100	x0
✓	gb_ch04_q020	Monty Hall problem Green Book · Ch 4 · Probability Theory	probability conditional monty-hall classic	1300	x0
✓	gb_ch04_q021	Amoeba population Green Book · Ch 4 · Probability Theory	probability branching-process total-probability	1700	x0
✓	gb_ch04_q022	Candies in a jar Green Book · Ch 4 · Probability Theory	probability conditional symmetry ordering	1700	x0
✓	gb_ch04_q023	Coin toss game (HT sequence) Green Book · Ch 4 · Probability Theory	probability conditional coin-toss recursion	1700	x0
✓	gb_ch04_q024	Russian roulette series Green Book · Ch 4 · Probability Theory	probability conditional strategy decision-theory	1900	x0
✓	gb_ch04_q025	Aces Green Book · Ch 4 · Probability Theory	probability combinatorics card-game conditional	1500	x0
✓	gb_ch04_q026	Gambler's ruin problem Green Book · Ch 4 · Probability Theory	probability random-walk gamblers-ruin recursion	1700	x0
✓	gb_ch04_q027	Basketball scores Green Book · Ch 4 · Probability Theory	probability induction polya-urn recursion	1900	x0
✓	gb_ch04_q028	Cars on road Green Book · Ch 4 · Probability Theory	probability independence poisson	1100	x0
✓	gb_ch04_q029	Meeting probability Green Book · Ch 4 · Probability Theory	probability geometric-probability uniform-distribution	1300	x0
✓	gb_ch04_q030	Probability of triangle Green Book · Ch 4 · Probability Theory	probability geometric-probability uniform-distribution	1500	x0
✓	gb_ch04_q031	Property of Poisson process Green Book · Ch 4 · Probability Theory	probability poisson-process memorylessness inspection-paradox	1700	x0
✓	gb_ch04_q032	Moments of normal distribution Green Book · Ch 4 · Probability Theory	probability normal-distribution moments mgf	1300	x0
✓	gb_ch04_q033	Connecting noodles Green Book · Ch 4 · Probability Theory	probability expectation recursion induction	1900	x0
✓	gb_ch04_q034	Optimal hedge ratio Green Book · Ch 4 · Probability Theory	probability finance variance optimization hedging	1300	x0
✓	gb_ch04_q035	Dice game Green Book · Ch 4 · Probability Theory	probability expectation total-expectation dice	1300	x0
✓	gb_ch04_q036	Card game (aces position) Green Book · Ch 4 · Probability Theory	probability expectation indicator-variables card-game	1500	x1
✓	gb_ch04_q037	Sum of random variables Green Book · Ch 4 · Probability Theory	probability uniform-distribution induction geometric-probability	1900	x0
✓	gb_ch04_q038	Coupon collection Green Book · Ch 4 · Probability Theory	probability expectation coupon-collector geometric-distribution indicator-variables	1600	x0
✓	gb_ch04_q039	Joint default probability Green Book · Ch 4 · Probability Theory	probability correlation finance indicator-variables bounds	1600	x0
✓	gb_ch04_q040	Expected value of max and min Green Book · Ch 4 · Probability Theory	probability order-statistics uniform-distribution expectation	1400	x0
✓	gb_ch04_q041	Correlation of max and min Green Book · Ch 4 · Probability Theory	probability order-statistics correlation uniform-distribution	1700	x0
✓	gb_ch04_q042	Random ants Green Book · Ch 4 · Probability Theory	probability order-statistics symmetry expectation creative-bijection	1800	x0
✓	gb_ch05_q001	Gambler's ruin problem (biased) Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	markov-chain gamblers-ruin absorbing-states	1400	x0
✓	gb_ch05_q002	Dice question (sum 12 vs two 7s) Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	markov-chain dice absorbing-states conditional	1700	x0
✓	gb_ch05_q003	Coin triplets — expected hitting times Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	markov-chain expected-hitting-time coin-toss	1700	x0
✓	gb_ch05_q004	Coin triplets — HHH before THH Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	markov-chain coin-toss absorbing-states structural-insight	1600	x0
✓	gb_ch05_q005	Coin triplets — Penney's ante (choose your sequence) Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	markov-chain penneys-ante coin-toss non-transitive game-theory	2000	x0
✓	gb_ch05_q006	Color balls Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	markov-chain expected-hitting-time symmetry conditional	2100	x0
✓	gb_ch05_q007	Drunk man Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	martingale random-walk optional-stopping absorbing-barriers	1700	x0
✓	gb_ch05_q008	Dice game (via Wald's equality) Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	martingale walds-equality expectation dice geometric-distribution	1300	x0
✓	gb_ch05_q009	Ticket line (ballot problem) Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	random-walk reflection-principle catalan-numbers ballot-problem	1900	x0
✓	gb_ch05_q010	Coin sequence — expected tosses for n heads Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	martingale induction expected-hitting-time coin-toss	1700	x0
✓	gb_ch05_q011	Dice game (3 rolls, dynamic programming) Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	dynamic-programming backward-induction dice optimal-stopping	1500	x0
✓	gb_ch05_q012	World series (binomial-tree betting) Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	dynamic-programming backward-induction binomial-tree betting	1800	x0
✓	gb_ch05_q013	Dynamic dice game Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	dynamic-programming backward-induction dice optimal-stopping	1800	x0
✓	gb_ch05_q014	Dynamic card game Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	dynamic-programming backward-induction card-game optimal-stopping	1900	x0
✓	gb_ch05_q015	Brownian motion definition and properties Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	brownian-motion definition martingale	1100	x0
✓	gb_ch05_q016	Correlation of Brownian motion and its square Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	brownian-motion correlation moments independence-vs-correlation	1300	x0
✓	gb_ch05_q017	P(B_1 > 0 and B_2 < 0) Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	brownian-motion joint-distribution polar-coordinates symmetry	1900	x0
✓	gb_ch05_q018	Stopping time — BM hits ±1 Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	brownian-motion stopping-time martingale itos-lemma	1500	x0
✓	gb_ch05_q019	First passage time Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	brownian-motion first-passage-time reflection-principle heavy-tail	1900	x0
✓	gb_ch05_q020	BM hits 3 before -5 (with/without drift) Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	brownian-motion drift optional-stopping exponential-martingale	1800	x0
✓	gb_ch05_q021	Generalized Wiener process reaches -1 Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	brownian-motion drift optional-stopping exponential-martingale	1800	x0
✓	gb_ch05_q022	Is sqrt(t) * B_t a martingale? Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	brownian-motion itos-lemma martingale	1600	x0
✓	gb_ch05_q023	Is W(t)^3 a martingale? Green Book · Ch 5 · Stochastic Process and Stochastic Calculus	brownian-motion itos-lemma martingale	1500	x0
✓	gb_ch06_q001	Price direction of options Green Book · Ch 6 · Finance	finance options comparative-statics intuition	1000	x0
✓	gb_ch06_q002	Put-call parity (European) Green Book · Ch 6 · Finance	finance options put-call-parity no-arbitrage	1200	x0
✓	gb_ch06_q003	American vs European calls Green Book · Ch 6 · Finance	finance options american-options put-call-parity	1500	x0
✓	gb_ch06_q004	Put arbitrage (strikes 80 and 90) Green Book · Ch 6 · Finance	finance options arbitrage convexity	1700	x0
✓	gb_ch06_q005	Black-Scholes-Merton differential equation Green Book · Ch 6 · Finance	finance options black-scholes pde itos-lemma	1700	x0
✓	gb_ch06_q006	Assumptions behind Black-Scholes Green Book · Ch 6 · Finance	finance options black-scholes assumptions	800	x0
✓	gb_ch06_q007	Derive Black-Scholes via risk-neutral expectation Green Book · Ch 6 · Finance	finance options black-scholes risk-neutral-pricing	1900	x0
✓	gb_ch06_q008	Derive Black-Scholes by solving the PDE Green Book · Ch 6 · Finance	finance options black-scholes pde heat-equation	2200	x0
✓	gb_ch06_q009	Cash-or-nothing call at stock-price barrier Green Book · Ch 6 · Finance	finance options barrier-option martingale arbitrage	1900	x0
✓	gb_ch06_q010	Value of 1/S at maturity Green Book · Ch 6 · Finance	finance options exotic itos-lemma geometric-brownian-motion	1900	x0
✓	gb_ch06_q011	Delta of European call (non-dividend stock) Green Book · Ch 6 · Finance	finance options greeks delta black-scholes	1500	x0
✓	gb_ch06_q012	Delta of at-the-money call Green Book · Ch 6 · Finance	finance options greeks delta at-the-money	1300	x0
✓	gb_ch06_q013	Dynamic delta hedging Green Book · Ch 6 · Finance	finance options delta-hedging dynamic-replication	1300	x0
✓	gb_ch06_q014	Estimate ATM call value (Brenner-Subrahmanyam) Green Book · Ch 6 · Finance	finance options approximation black-scholes implied-volatility	1400	x0
✓	gb_ch06_q015	Gamma of an at-the-money option near maturity Green Book · Ch 6 · Finance	finance options greeks gamma at-the-money	1400	x0
✓	gb_ch06_q016	When does a European option have positive theta? Green Book · Ch 6 · Finance	finance options greeks theta	1500	x0
✓	gb_ch06_q017	Delta-hedged call: gamma vs theta Green Book · Ch 6 · Finance	finance options delta-hedging gamma theta bsm-pde	1500	x0
✓	gb_ch06_q018	Implied volatility and volatility smile Green Book · Ch 6 · Finance	finance options implied-volatility volatility-smile black-scholes	1200	x0
✓	gb_ch06_q019	Constant vs random volatility — which call is more expensive? Green Book · Ch 6 · Finance	finance options jensens-inequality volga stochastic-volatility	1700	x0
✓	gb_ch06_q020	Risk-neutral density from option prices Green Book · Ch 6 · Finance	finance options risk-neutral-density breeden-litzenberger	1800	x0
✓	gb_ch06_q021	Bull call spread — price boundaries Green Book · Ch 6 · Finance	finance options bull-spread no-arbitrage bounds	1300	x0
✓	gb_ch06_q022	Straddle Green Book · Ch 6 · Finance	finance options straddle volatility-trade	1100	x0
✓	gb_ch06_q023	Binary (cash-or-nothing) option pricing Green Book · Ch 6 · Finance	finance options binary-option exotic-option delta-hedging	1700	x0
✓	gb_ch06_q024	Exchange option (Margrabe formula) Green Book · Ch 6 · Finance	finance options exchange-option margrabe-formula change-of-numeraire	2100	x0
✓	gb_ch06_q025	Portfolio optimization (two stocks) Green Book · Ch 6 · Finance	finance portfolio-optimization mean-variance markowitz	1400	x0
✓	gb_ch06_q026	Value at risk (VaR) Green Book · Ch 6 · Finance	finance risk-management value-at-risk coherent-risk-measure	1300	x0
✓	gb_ch06_q027	Duration and convexity Green Book · Ch 6 · Finance	finance fixed-income duration convexity taylor-series	1200	x0
✓	gb_ch06_q028	Inverse floater pricing Green Book · Ch 6 · Finance	finance fixed-income inverse-floater duration replication	1800	x0
✓	gb_ch06_q029	Forward vs futures contracts Green Book · Ch 6 · Finance	finance futures forwards mark-to-market	1300	x0
✓	gb_ch06_q030	Interest rate models Green Book · Ch 6 · Finance	finance interest-rate-models vasicek cir ho-lee hull-white	1300	x0
✓	gb_ch07_q001	Number swap (without temp variable) Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms bit-manipulation in-place xor	1000	x0
✓	gb_ch07_q002	Unique elements in a sorted array Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms arrays deduplication	800	x0
✓	gb_ch07_q003	Horner's algorithm Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms polynomial horners-method numerical	1100	x0
✓	gb_ch07_q004	Moving average Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms sliding-window moving-average	1000	x0
✓	gb_ch07_q005	Sorting algorithms (3 with complexity) Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms sorting complexity-analysis	1200	x0
✓	gb_ch07_q006	Random permutation — shuffle 52 cards Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms randomized shuffle knuth-shuffle	1300	x0
✓	gb_ch07_q007	Random permutation — sequential character pick Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms randomized reservoir-sampling online	1400	x0
✓	gb_ch07_q008	Find min and max in 3n/2 comparisons Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms comparison optimization	1400	x0
✓	gb_ch07_q009	First nonzero element in array Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms search binary-search unbounded	1300	x0
✓	gb_ch07_q010	Search in sorted matrix Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms search sorted-matrix	1400	x0
✓	gb_ch07_q011	Fibonacci numbers — efficient computation Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms fibonacci recursion matrix-exponentiation complexity	1500	x0
✓	gb_ch07_q012	Maximum contiguous subarray (Kadane's algorithm) Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms dynamic-programming kadanes-algorithm	1400	x0
✓	gb_ch07_q013	Power of 2 Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms bit-manipulation powers-of-2	1100	x0
✓	gb_ch07_q014	Multiplication by 7 Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms bit-manipulation arithmetic-tricks	900	x0
✓	gb_ch07_q015	Probability simulation with a fair coin Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms randomized binary-representation probability-simulation	1700	x0
✓	gb_ch07_q016	Poisonous wine Green Book · Ch 7 · Algorithms and Numerical Methods	algorithms binary-encoding puzzle classic	1500	x0
✓	gb_ch07_q017	Monte Carlo for European call Green Book · Ch 7 · Algorithms and Numerical Methods	numerical-methods monte-carlo option-pricing	1300	x0
✓	gb_ch07_q018	Generate normal random variables from uniform Green Book · Ch 7 · Algorithms and Numerical Methods	numerical-methods random-number-generation box-muller acceptance-rejection	1400	x0
✓	gb_ch07_q019	Variance reduction techniques Green Book · Ch 7 · Algorithms and Numerical Methods	numerical-methods monte-carlo variance-reduction	1400	x0
✓	gb_ch07_q020	Monte Carlo for delta and gamma Green Book · Ch 7 · Algorithms and Numerical Methods	numerical-methods monte-carlo greeks finite-differences	1400	x0
✓	gb_ch07_q021	Monte Carlo estimate of pi Green Book · Ch 7 · Algorithms and Numerical Methods	numerical-methods monte-carlo pi geometric-probability	1100	x0
✓	gb_ch07_q022	Finite difference methods Green Book · Ch 7 · Algorithms and Numerical Methods	numerical-methods finite-difference pde option-pricing	1500	x0
✓	gb_ch07_q023	Stability of explicit finite difference Green Book · Ch 7 · Algorithms and Numerical Methods	numerical-methods finite-difference stability cfl-condition	1500	x0
✓	pr_ch00_q001	Odd function properties A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 0 · Mathematical preliminaries	even-odd calculus elementary	900	x0
✓	pr_ch00_q002	Sum of k^2 and k^3 A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 0 · Mathematical preliminaries	sums series lhopital	1500	x0
✓	pr_ch00_q003	Compute S(n, 4) A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 0 · Mathematical preliminaries	sums recursion	1500	x0
✓	pr_ch00_q004	Linear recursion x_{n+2} = x_{n+1} + (n+1)^2 A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 0 · Mathematical preliminaries	recursion characteristic-polynomial sums	1700	x0
✓	pr_ch00_q005	Linear recursion with constant term A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 0 · Mathematical preliminaries	recursion characteristic-polynomial	1400	x0
✓	pr_ch00_q006	Linear recursion x_{n+1} = 3x_n + 2 A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 0 · Mathematical preliminaries	recursion characteristic-polynomial	1500	x0
✓	pr_ch00_q007	Linear recursion x_{n+1} = 3x_n + n + 2 A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 0 · Mathematical preliminaries	recursion characteristic-polynomial	1700	x0
✓	pr_ch00_q008	Characteristic polynomial multiplicity A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 0 · Mathematical preliminaries	recursion characteristic-polynomial proof	1700	x0
✓	pr_ch01_q001	Compute integral of ln x A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	calculus integration by-parts	1000	x0
✓	pr_ch01_q002	Compute integral with u=ln x substitution A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	calculus integration substitution	1000	x0
✓	pr_ch01_q003	Integrate (tan x)^2 A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	calculus integration trig	1100	x0
✓	pr_ch01_q004	Taylor approximations of sqrt(1+x) and e^x A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	calculus taylor lhopital	1400	x0
✓	pr_ch01_q005	Definition of e A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	calculus limits exponential	1300	x0
✓	pr_ch01_q006	Function g(x) related to plain vanilla call delta A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	calculus leibniz delta	1500	x0
✓	pr_ch01_q007	Limit definition of derivative A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	calculus limits finite-difference	1300	x0
✓	pr_ch01_q008	Bond cash flows price A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	calculus bonds derivatives	1100	x0
✓	pr_ch01_q009	Multivariable function gradient and Hessian A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	multivariable gradient hessian	1400	x0
✓	pr_ch01_q010	Heat equation solution u(x,t) A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	calculus pde heat-equation	1500	x0
✓	pr_ch01_q011	Arbitrage with calls and puts at three strikes A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	options butterfly payoff	1300	x0
✓	pr_ch01_q012	Bear spread payoff A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	options spreads payoff	1100	x0
✓	pr_ch01_q013	Which two portfolios with same payoff A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	options convexity	1500	x0
✓	pr_ch01_q014	Call options strikes 100, 120, 130 — bid-ask? A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	options arbitrage convexity	1700	x0
✓	pr_ch01_q015	Call options on stock with dividends paid A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	options put-call-parity dividends arbitrage	1700	x0
✓	pr_ch01_q016	Bid-ask spreads on European call option A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	options put-call-parity bid-ask	1600	x0
✓	pr_ch01_q017	A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	options strategy leverage	1600	x0
✓	pr_ch01_q018	Index futures arbitrage 8% dividend A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 1 · Calculus review. Options	futures arbitrage cost-of-carry	1600	x0
✓	pr_ch02_q001	Integral of (x^2 - 2y) on parabola region A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	calculus double-integral	1400	x0
✓	pr_ch02_q002	Gamma function recursion A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	calculus gamma-function improper-integral	1500	x0
✓	pr_ch02_q003	Numerical integration of sqrt(x) e^x A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	numerical-integration midpoint trapezoidal simpson	1300	x0
✓	pr_ch02_q004	A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	numerical-integration simpson convergence	1500	x0
✓	pr_ch02_q005	Derivative for plain vanilla call delta A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	calculus leibniz delta	1400	x0
✓	pr_ch02_q006	Risk-neutral pricing function A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	calculus risk-neutral leibniz	1500	x0
✓	pr_ch02_q007	Bond pricing with constant rate A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	bonds pricing zero-rates	1300	x0
✓	pr_ch02_q008	Yield of 2-year semiannual coupon bond A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	bonds yield	1500	x0
✓	pr_ch02_q009	Zero rate curve r(t) = 0.05 + 0.005 ln(1+t) A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	bonds interest-curves discount-factors	1500	x0
✓	pr_ch02_q010	Semiannual bond price, duration, convexity A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	bonds duration convexity	1400	x0
✓	pr_ch02_q011	Yield of 14-month coupon bond A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	bonds duration convexity	1400	x0
✓	pr_ch02_q012	Bond price under flat rate curve A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	bonds duration convexity	1500	x0
✓	pr_ch02_q013	Bond duration meaningful A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	bonds duration intuition	1600	x0
✓	pr_ch02_q014	Bond price change for two-year zero A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	bonds duration zero-coupon	1300	x0
✓	pr_ch02_q015	5-year bond duration 3.5 years A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	bonds duration approximation	1200	x0
✓	pr_ch02_q016	Duration convexity identity A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 2 · Numerical integration. Interest Rates. Bonds	bonds duration convexity identity	1700	x0
✓	pr_ch03_q001	Two dice roll for game advantage A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	probability expected-value dice	1400	x0
✓	pr_ch03_q002	Two coins, two heads with probability p and 1-p A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	probability geometric expected-value	1100	x0
✓	pr_ch03_q003	Stock model up/down/middle over three periods A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	probability binomial-tree expected-value variance	1300	x0
✓	pr_ch03_q004	Exponential density parametrization A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	probability exponential memoryless	1100	x0
✓	pr_ch03_q005	Cauchy-Schwarz inequality A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	probability inequalities cauchy-schwarz	1500	x0
✓	pr_ch03_q006	BS for put and call portfolios A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options black-scholes pricing	1400	x0
✓	pr_ch03_q007	European put zero value implication A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options edge-cases delta	1300	x0
✓	pr_ch03_q008	Put delta from call delta A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options greeks rho put-call-parity	1500	x0
✓	pr_ch03_q009	Volga and Vanna A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options greeks volga vanna	1700	x0
✓	pr_ch03_q010	ATM call put dividends q vs r A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options put-call-parity atm	1400	x0
✓	pr_ch03_q011	Theta of vanilla call on non-dividend asset A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options greeks theta	1700	x0
✓	pr_ch03_q012	Vanilla call convex in K A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options convexity strike	1500	x0
✓	pr_ch03_q013	Gamma of ATM calls with different maturities A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options greeks gamma maturities	1400	x0
✓	pr_ch03_q014	Volga and vega of plain vanilla call A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options greeks vega volga	1500	x0
✓	pr_ch03_q015	Bounds on call and put no-arbitrage A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options bounds no-arbitrage	1500	x0
✓	pr_ch03_q016	Delta-neutral and Gamma-neutral with 5000 Delta A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options hedging greeks delta-gamma-neutral	1500	x0
✓	pr_ch03_q017	Buy 1000 calls strike 90 hedging delta A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options delta-hedging lognormal	1300	x0
✓	pr_ch03_q018	Hedging six-month ATM calls A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 3 · Probability concepts. Black-Scholes formula. Greeks and Hedging	options delta-hedging atm	1500	x0
✓	pr_ch04_q001	Sum of normal random variables A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	probability normal sum	1100	x0
✓	pr_ch04_q002	Sample average normal mean and var A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	probability sample-mean variance	1200	x0
✓	pr_ch04_q003	Binomial expected value over interval A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	binomial-tree expected-value risk-neutral	1100	x0
✓	pr_ch04_q004	Lognormal expected value formula A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	lognormal risk-neutral expected-value	1400	x0
✓	pr_ch04_q005	Calibrate binomial to lognormal A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	binomial-tree lognormal calibration crr	1700	x0
✓	pr_ch04_q006	Show two series convergence/divergence A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	series convergence harmonic	1300	x0
✓	pr_ch04_q007	Radius of convergence sum x^n / (k (ln k)^2) A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	series power-series radius-of-convergence	1600	x0
✓	pr_ch04_q008	OTM put 6-month lognormal A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	lognormal options probabilities	1500	x0
✓	pr_ch04_q009	Delta of ATM call no dividends A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	options delta atm	1600	x0
✓	pr_ch04_q010	Powerball expected payoff A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	options exotic risk-neutral	1900	x0
✓	pr_ch04_q011	Asset following normal process A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 4 · Lognormal random variables. Risk-neutral pricing	options normal-model risk-neutral	1800	x0
✓	pr_ch05_q001	Cubic Taylor approximation of sqrt(1+x) A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 5 · Taylor's formula. Taylor series	taylor approximation	1000	x0
✓	pr_ch05_q002	Taylor series of e^x A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 5 · Taylor's formula. Taylor series	taylor series exponential	1100	x0
✓	pr_ch05_q003	Taylor series of ln(1-x^2) and 1/(1-x^2) A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 5 · Taylor's formula. Taylor series	taylor series logarithm	1100	x0
✓	pr_ch05_q004	Taylor expansion of ln(1+x) and remainder bound A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 5 · Taylor's formula. Taylor series	taylor series convergence logarithm	1700	x0
✓	pr_ch05_q005	Cox-Ross-Rubinstein with Taylor expansion A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 5 · Taylor's formula. Taylor series	taylor crr binomial-tree approximation	1700	x0
✓	pr_ch05_q006	Approximate ATM put error vs Black-Scholes A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 5 · Taylor's formula. Taylor series	taylor atm-approximation options	1500	x0
✓	pr_ch05_q007	Put-call approximation under r-q A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 5 · Taylor's formula. Taylor series	taylor atm-approximation put-call-parity	1700	x0
✓	pr_ch05_q008	Vanilla put with 30% vol, ATM A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 5 · Taylor's formula. Taylor series	taylor atm-approximation options	1300	x0
✓	pr_ch05_q009	5-year bond price change A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 5 · Taylor's formula. Taylor series	bonds duration convexity	1500	x0
✓	pr_ch06_q001	Butterfly spread payoff and limit A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	options butterfly limits arrow-debreu	1600	x0
✓	pr_ch06_q002	Long call short call same strike approximate Delta A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	options bullspread limits delta	1500	x0
✓	pr_ch06_q003	Forward difference approximation of f'(a) A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	finite-difference forward second-order	1500	x0
✓	pr_ch06_q004	Central finite difference of f at a third derivative A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	finite-difference central higher-order	1700	x0
✓	pr_ch06_q005	Non-symmetric central FD with order analysis A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	finite-difference symmetry order-of-approximation	1600	x0
✓	pr_ch06_q006	Forward Euler ODE convergence A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	ode finite-difference convergence euler	1500	x0
✓	pr_ch06_q007	Second order ODE finite difference A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	ode finite-difference linear-system central	1500	x0
✓	pr_ch06_q008	ODE with f(x, Y(x)) A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	ode first-order-form matrix	1300	x0
✓	pr_ch06_q009	Greeks of 6-month call from finite differences A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	finite-difference greeks delta gamma vega	1600	x0
✓	pr_ch06_q010	Plain vanilla call satisfies BS PDE A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	pde black-scholes derivation	1700	x0
✓	pr_ch06_q011	Forward contract value f(S, t) satisfies BS PDE A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 6 · Finite Differences. Black-Scholes PDE	pde forward-contract black-scholes	1500	x0
✓	pr_ch07_q001	Gamma of plain vanilla call as function of S A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	options gamma maxima	1600	x0
✓	pr_ch07_q002	Double integral over triangular region A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	multivariable double-integral change-of-variables	1500	x0
✓	pr_ch07_q003	Polar coordinates for area of circle A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	multivariable polar area	1100	x0
✓	pr_ch07_q004	Heat equation transformation of BS PDE A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	pde heat-equation change-of-variables	1900	x0
✓	pr_ch07_q005	Show boundary condition satisfied A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	algebra pde change-of-variables	1700	x0
✓	pr_ch07_q006	Asian option PDE change of variables A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	pde asian-options change-of-variables	2000	x0
✓	pr_ch07_q007	OTM puts price compare to American A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	options american early-exercise	1500	x0
✓	pr_ch07_q008	Hedge european call w/ replicating portfolio A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	options intrinsic-value time-value maxima	1600	x0
✓	pr_ch07_q009	Down-and-out call no dividend A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	options barrier down-and-out	1700	x0
✓	pr_ch07_q010	Down-and-out worth zero in limit A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	options barrier limits lhopital	1700	x0
✓	pr_ch07_q011	Delta and Gamma of down-and-out call A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 7 · Multivariable calculus: chain rule, integration by substitution, extrema. Barrier options	options barrier greeks	1700	x0
✓	pr_ch08_q001	Lagrange extrema of f(x1, x2, x3) = 4x1 - 2x2 A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 8 · Lagrange multipliers. Newton's method. Implied volatility. Bootstrapping	lagrange extrema constrained-optimization	1600	x0
✓	pr_ch08_q002	Mean-variance optimal portfolio A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 8 · Lagrange multipliers. Newton's method. Implied volatility. Bootstrapping	portfolio-optimization lagrange mean-variance	1800	x0
✓	pr_ch08_q003	Newton's method bond YTM with 100 1/12 freq A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 8 · Lagrange multipliers. Newton's method. Implied volatility. Bootstrapping	bonds ytm newton duration	1600	x0
✓	pr_ch08_q004	Implied volatility iteration A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 8 · Lagrange multipliers. Newton's method. Implied volatility. Bootstrapping	implied-volatility newton limits	1900	x0
✓	pr_ch08_q005	Three-month ATM call dividends 2% A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 8 · Lagrange multipliers. Newton's method. Implied volatility. Bootstrapping	implied-volatility newton secant bisection	1700	x0
✓	pr_ch08_q006	Newton's method 2D F(x,y) = 0 A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 8 · Lagrange multipliers. Newton's method. Implied volatility. Bootstrapping	newton multivariable finite-difference	2000	x0
✓	pr_ch08_q007	Bootstrap zero rate curve from T-bills and bonds A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 8 · Lagrange multipliers. Newton's method. Implied volatility. Bootstrapping	bootstrapping zero-rate yield-curve	1800	x0
✓	pr_ch08_q008	Bootstrap yield curve from semi-annual coupon A Primer for the Mathematics of Financial Engineering (Stefanica) · Ch 8 · Lagrange multipliers. Newton's method. Implied volatility. Bootstrapping	bootstrapping zero-rate yield-curve	1900	x0
✓	qip_q001	Roll two dice — higher number probability An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability dice symmetry	1100	x0
✓	qip_q002	Bivariate normal expectation An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability joint-normal max	1700	x0
✓	qip_q003	Bunch of vectors in R An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	r matrices	900	x0
✓	qip_q004	Python negative indexing mylist[-1] An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	python indexing	800	x0
✓	qip_q005	C++ virtual functions An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	c++virtual polymorphism	1100	x0
✓	qip_q006	E(X^4) for X ~ Normal(0, sigma^2) An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability normal moments	1400	x0
✓	qip_q007	Find missing number in unsorted array An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	algorithm arrays sum binary-search	1500	x0
✓	qip_q008	Sample mean and variance distribution An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	statistics sampling-distribution chi-squared	1700	x0
✓	qip_q009	Derivative of inverse function An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	calculus inverse-function	1300	x0
✓	qip_q010	100 coin gamble — 60+ heads An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability binomial normal-approximation	1500	x0
✓	qip_q011	Zero correlation but not independent An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability correlation independence counterexample	1500	x0
✓	qip_q012	Two urns, 5 red 5 blue — maximize winning probability An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability optimization urns	1500	x0
✓	qip_q013	Three judges majority correct An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability voting majority	1400	x0
✓	qip_q014	Linear regression assumptions and tests An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	statistics regression ols	1400	x0
✓	qip_q015	Disease test Bayes An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability bayes disease-test	1300	x0
✓	qip_q016	Derivative of x^x An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	calculus logarithmic-differentiation	1100	x0
✓	qip_q017	Compare e^pi vs pi^e An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	calculus monotonicity	1400	x0
✓	qip_q018	AR(1) mean and variance An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	time-series ar1 stationarity	1500	x0
✓	qip_q019	Z = X*Y where Y is +/-1 An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability normal symmetry	1400	x0
✓	qip_q020	Cov(X,Y) = 0 implies independence? An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability covariance independence	1300	x0
✓	qip_q021	Triangle from stick breaks An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability geometric triangle	1500	x0
✓	qip_q022	Check anagrams with/without sorting An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	coding strings anagram	1100	x0
✓	qip_q023	nCr without standard library An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	coding combinatorics recursion	1200	x0
✓	qip_q024	Romeo and Juliet meeting probability An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability geometric meeting	1500	x0
✓	qip_q025	Find Beckham via 'knows' function (adjacency matrix) An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	algorithm graph celebrity-problem	1700	x0
✓	qip_q026	Unique integer except one in array An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	algorithm arrays hashing	1300	x0
✓	qip_q027	n bandits — favorite sorting algorithm An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	algorithm sorting complexity	1300	x0
✓	qip_q028	Significance tests in logistic vs linear An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	statistics logistic-regression hypothesis-testing	1500	x0
✓	qip_q029	Two wood pieces — minimize variance with 2 measurements An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	statistics design variance-reduction	1800	x0
✓	qip_q030	Two red socks probability 1/2 An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability combinatorics diophantine	1500	x0
✓	qip_q031	Linear regression assumptions and multicollinearity An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	statistics regression multicollinearity	1400	x0
✓	qip_q032	Non-linear models An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	statistics non-linear-models	1100	x0
✓	qip_q033	SQL: average department salary and second-highest salary An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	sql window-functions subquery	1300	x0
✓	qip_q034	SQL: customers who changed details An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	sql group-by	1300	x0
✓	qip_q035	Linear vs logistic regression assumptions & significance tests An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	statistics regression logistic-regression	1500	x0
✓	qip_q036	R data structures, merging data frames, lapply vs for loop An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	r data-structures functional	1100	x0
✓	qip_q037	Specific team problem — model recommendation An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	modeling interview-soft	1300	x0
✓	qip_q038	Random walk hit l before 0 An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	random-walk gamblers-ruin martingale	1500	x0
✓	qip_q039	First to say 50 game An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	game-theory nim-like induction	1500	x0
✓	qip_q040	Two cards from 52-20 deck both aces An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	probability symmetry cards	1700	x0
✓	qip_q041	Bag of coins, one double-headed An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 1 · Interviews	bayes conditional coins	1600	x0
✓	qip_q042	Air Force One (boarding) An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 2 · Old friends	probability classic induction	1700	x0
✓	qip_q043	Stick-breaking — triangle probability (deeper) An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 2 · Old friends	probability geometric triangle	1500	x0
✓	qip_q044	Linear regression derivation An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 3 · Regression theory	statistics ols derivation	1500	x0
✓	qip_q045	Simple linear regression — derive beta_hat An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 3 · Regression theory	statistics simple-regression ols	1300	x0
✓	qip_q046	Logistic regression — log-likelihood and MLE An Interview Primer for Quantitative Finance (Dirk Bester, 2017) · Ch 3 · Regression theory	statistics logistic-regression mle iterative	1700	x0
✓	rb_ch01_q001	Two glass jugs (water and alcohol) Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle ratios classic	1000	x0
✓	rb_ch01_q002	Two bells ringing together Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle lcm	1100	x0
✓	rb_ch01_q003	Sum of integers 1 to 100 Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	arithmetic summation	900	x0
✓	rb_ch01_q004	Old style analogue clock falls off wall Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle partition classic	1100	x0
✓	rb_ch01_q005	Twelve marbles, one different Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle weighing classic	1300	x0
✓	rb_ch01_q006	Inscribed circle in square in corner Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	geometry circle puzzle	1400	x0
✓	rb_ch01_q007	Bug in cubic room Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	geometry 3d puzzle	1200	x0
✓	rb_ch01_q008	Married couples no children probability Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	probability expectation common-misconception	1100	x0
✓	rb_ch01_q009	10x10x10 macro-cube micro-cubes Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	geometry counting	1300	x0
✓	rb_ch01_q010	Apples by truck or by railway Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	optimization puzzle	1500	x0
✓	rb_ch01_q011	Hour and minute hand angle Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	geometry clock puzzle	1600	x0
✓	rb_ch01_q012	First time after 3 PM when hour and minute hands meet Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	geometry clock	1700	x0
✓	rb_ch01_q013	100 light bulbs and 100 stockbrokers Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory divisors puzzle	1500	x0
✓	rb_ch01_q014	100 light bulbs continued Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory divisors perfect-squares	1700	x0
✓	rb_ch01_q015	Sock drawer pairs Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	pigeonhole puzzle	1400	x0
✓	rb_ch01_q016	Competitive number-calling game Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	game-theory strategy backward-induction	1500	x0
✓	rb_ch01_q017	Safe combination 40 brute force Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	combinatorics counting puzzle	1400	x0
✓	rb_ch01_q018	90 coins one unusual minimum weighings Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle weighing optimization	1800	x0
✓	rb_ch01_q019	Bounded entire complex function Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	complex-analysis liouvilles-theorem proof	1300	x0
✓	rb_ch01_q020	10000 ants on ruler Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle physics-trick classic	1600	x0
✓	rb_ch01_q021	Lily pad doubling 30 days Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	exponential-growth puzzle	1500	x0
✓	rb_ch01_q022	27 lily pads in 6000 sq ft pond Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	exponential-growth puzzle	1600	x0
✓	rb_ch01_q023	Decimal equivalents of 13/16 and 9/16 Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	arithmetic fractions	1700	x0
✓	rb_ch01_q024	Snail climbs 10-foot pole Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle trick-question	1800	x0
✓	rb_ch01_q025	Three identical light fixtures three switches Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle encoding classic	1600	x0
✓	rb_ch01_q026	Five hats three blue two red Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle logic-deduction classic	1500	x0
✓	rb_ch01_q027	Smallest positive integer with remainder pattern Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory modular-arithmetic lcm	1400	x0
✓	rb_ch01_q028	Motorcyclists fly between them Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle trick-question	1500	x0
✓	rb_ch01_q029	Prove Heron's formula Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	geometry proof herons-formula	1300	x0
✓	rb_ch01_q030	Nine integers ABCDEFGHI constraint Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	constraint-satisfaction puzzle	1400	x0
✓	rb_ch01_q031	Hotel rooms key drunk guests Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	probability derangement inclusion-exclusion	1600	x0
✓	rb_ch01_q032	Boat rock pool water level Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	physics buoyancy puzzle	1400	x0
✓	rb_ch01_q033	Unfaithful husbands village Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	logic-deduction common-knowledge classic	1700	x0
✓	rb_ch01_q034	Three poles 64 rings Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	recursion tower-of-hanoi classic	1800	x0
✓	rb_ch01_q035	Solve ODE u''+u'+u=1 Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	calculus ode second-order	1500	x0
✓	rb_ch01_q036	Minimize variance aX+bY Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	statistics optimization variance	1600	x0
✓	rb_ch01_q037	Lighthouse beam speed Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	calculus related-rates	1500	x0
✓	rb_ch01_q038	20x20 chessboard cube pattern Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	combinatorics summation	1700	x0
✓	rb_ch01_q039	Running away from dog in field Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle pursuit geometry	1400	x0
✓	rb_ch01_q040	Prove integral of e^{-x^2} Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	calculus gaussian-integral polar-coordinates proof	1500	x0
✓	rb_ch01_q041	Integral of sec theta Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	calculus integration trigonometry	1300	x0
✓	rb_ch01_q042	Infinite sum convergence Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	calculus series convergence	1500	x0
✓	rb_ch01_q043	Three children product 36 Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle logic-deduction classic	1600	x0
✓	rb_ch01_q044	Eight golf balls Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle weighing	1700	x0
✓	rb_ch01_q045	Sum k and k^3 from 1 to n Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	arithmetic summation induction	1700	x0
✓	rb_ch01_q046	52 cards red one dollar each Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	optimal-stopping dynamic-programming	1800	x0
✓	rb_ch01_q047	Quarter table covering game Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	game-theory strategy symmetry	1500	x0
✓	rb_ch01_q048	Chessboard dominoes corners removed Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle parity coloring classic	1700	x0
✓	rb_ch01_q049	p prime > 3 then p^2-1 divisible by 24 Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory proof	1400	x0
✓	rb_ch01_q050	Maximize firm value uniform Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	probability auction decision-theory	1700	x0
✓	rb_ch01_q051	String-like fuse 30 seconds with watch Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle fuse-burning	1600	x0
✓	rb_ch01_q052	Two string-like fuses 45 seconds Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle fuse-burning classic	1500	x0
✓	rb_ch01_q053	Walk one mile south east north end up at start Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	geometry puzzle spherical	1300	x0
✓	rb_ch01_q054	Trailing zeros 100! Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory factorial trailing-zeros	1400	x0
✓	rb_ch01_q055	10 regions tax cheat scale Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle weighing encoding classic	1500	x0
✓	rb_ch01_q056	Seven gold bars two cuts Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle binary classic	1700	x0
✓	rb_ch01_q057	99 distinct integers missing one Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	algorithms summation	1500	x0
✓	rb_ch01_q058	Mirror flip horizontal not vertical Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle physics philosophy	1600	x0
✓	rb_ch01_q059	Heterosexual intercourse without condoms Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	puzzle lateral-thinking	1500	x0
✓	rb_ch01_q060	Lattice paths coordinate Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	combinatorics lattice-paths	1400	x0
✓	rb_ch01_q061	Six friends pizza bill split Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	arithmetic	1300	x0
✓	rb_ch01_q062	Pizza two small versus one medium Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	geometry optimization puzzle	1600	x0
✓	rb_ch01_q063	Find all roots x^5 = 64 Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	complex-numbers roots-of-unity	1400	x0
✓	rb_ch01_q064	Rock falls Empire State Building Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	physics kinematics	1500	x0
✓	rb_ch01_q065	Integral involving N(x) cumulative normal Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	calculus integration normal-distribution	1400	x0
✓	rb_ch01_q066	Limit sqrt(x^2+x)-x Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	calculus limits	1600	x0
✓	rb_ch01_q067	Differentiate x^x with respect to x Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	calculus derivative logarithmic-differentiation	1600	x0
✓	rb_ch01_q068	Two consecutive prime numbers mean prime Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions	number-theory primes	1800	x0
✓	rb_ch02_q001	Black-Scholes ATM call worth and hedge Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options black-scholes hedging	1500	x0
✓	rb_ch02_q002	Two options same features one short one long maturity Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options greeks gamma	1600	x0
✓	rb_ch02_q003	European call and put at zero interest rate Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options put-call-parity payoff-diagrams	1400	x0
✓	rb_ch02_q004	Delta graph for European call Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options greeks delta	1700	x0
✓	rb_ch02_q005	ATM call delta greater than 0.5 Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options delta moneyness	1500	x0
✓	rb_ch02_q006	ATM call delta with dividends Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options delta dividends	1700	x0
✓	rb_ch02_q007	MITCO long call delta-hedged CEO arrested Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options delta-hedging gap-risk	1800	x0
✓	rb_ch02_q008	How to calculate option's delta Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options delta calculation	1600	x0
✓	rb_ch02_q009	Explain N(d_1) and N(d_2) Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options black-scholes interpretation	1700	x0
✓	rb_ch02_q010	European digital option above strike pays H Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options binary-option digital-option	1500	x0
✓	rb_ch02_q011	European digital pays H below strike Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options binary-option vega	1700	x0
✓	rb_ch02_q012	Delta of standard call vs down-and-out call Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options barrier-options delta	1800	x0
✓	rb_ch02_q013	Daily vs monthly volatility estimators Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options volatility-estimation time-series	1900	x0
✓	rb_ch02_q014	American call non-dividend-paying intrinsic vs time value Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options intrinsic-value time-value	1900	x0
✓	rb_ch02_q015	Delta-hedged short call replicating portfolio falling Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options delta-hedging in-the-money	2000	x0
✓	rb_ch02_q016	Jump diffusion processes Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	stochastic-processes jump-diffusion	1700	x0
✓	rb_ch02_q017	Three graphs call price stock price three perspectives Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options futures graphs	1800	x0
✓	rb_ch02_q018	Black-Scholes formula four-year option from one-year Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options black-scholes volatility-scaling	1900	x0
✓	rb_ch02_q019	(***) Black-Scholes with arithmetic Brownian motion Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options arithmetic-brownian-motion derivation	2000	x0
✓	rb_ch02_q020	Black-Scholes 3-month ATM call IV mental calc Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options mental-math approximation	2100	x0
✓	rb_ch02_q021	100-day call quote 200-day call price Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options maturity pricing	1800	x0
✓	rb_ch02_q022	Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options approximation ATM	1900	x0
✓	rb_ch02_q023	100-day call IV increases by 25 - effect on one-day IV Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options vega vega-equivalent-time	1700	x0
✓	rb_ch02_q024	Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options straddle breakeven	1900	x0
✓	rb_ch02_q025	Eurodollar futures vs forward six months Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	futures forwards eurodollar	1800	x0
✓	rb_ch02_q026	MC simulation GBM directly or underlying Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	monte-carlo options simulation	2000	x0
✓	rb_ch02_q027	MBS positive vs negative convexity Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	fixed-income convexity mortgage-backed	1900	x0
✓	rb_ch02_q028	Short call hedge strategy Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options hedging stop-loss	2000	x0
✓	rb_ch02_q029	Integral of w(t) dt Brownian Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	stochastic-calculus brownian-motion integration	1900	x0
✓	rb_ch02_q030	Integral of w(t) dw(t) Brownian Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	stochastic-calculus itos-lemma integration	2000	x0
✓	rb_ch02_q031	Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	derivatives barrier-options first-passage	1900	x0
✓	rb_ch02_q032	Power call max(S^a - X, 0) Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options exotic-options power-options	2000	x0
✓	rb_ch02_q033	Why volatility smile effect Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options implied-volatility volatility-smile	2100	x0
✓	rb_ch02_q034	Double-barrier knock-out vs sum of up-and-out and down-and-out Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options barrier-options exotic	2100	x0
✓	rb_ch02_q035	Analytical procedure for digital options Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options digital-options derivation	2200	x0
✓	rb_ch02_q036	American out call with up and down barriers Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options exotic-options barrier-options	2000	x0
✓	rb_ch02_q037	Gold prices Gaussian digital cash-or-nothing Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options digital-options gold	1800	x0
✓	rb_ch02_q038	(**) Perpetual option value Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options american-options perpetual	1900	x0
✓	rb_ch02_q039	Reverse engineering interest rate swap Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	fixed-income swaps reverse-engineering	2000	x0
✓	rb_ch02_q040	ATM how many shares of stock Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options delta-hedging ATM	1900	x0
✓	rb_ch02_q041	Price of option vs mean reversion vs random walk Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options mean-reversion volatility	1800	x0
✓	rb_ch02_q042	Hedging an options position taking more risk Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options hedging risk	1700	x0
✓	rb_ch02_q043	Written put on stock without short stock or options Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options hedging synthetic-positions	1900	x0
✓	rb_ch02_q044	Pizza derivatives lateral Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	puzzle geometry lateral-thinking	1700	x0
✓	rb_ch02_q045	When short put option IBM Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options trading-strategy	1800	x0
✓	rb_ch02_q046	Land in Arizona vs piece of beach in Florida Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	finance forward-pricing cost-of-carry	1700	x0
✓	rb_ch02_q047	30 days historical sigma^2 for Black-Scholes Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	volatility-estimation historical-volatility	1800	x0
✓	rb_ch02_q048	Top issuer swap curve Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	fixed-income swap-curve pricing	1900	x0
✓	rb_ch02_q049	Derive Black-Scholes without math Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options risk-neutral-pricing intuition	2000	x0
✓	rb_ch02_q050	Implied SD vs historical SD Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	volatility implied-vs-historical	1900	x0
✓	rb_ch02_q051	Out-of-the-money call vs put more valuable Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options moneyness	1800	x0
✓	rb_ch02_q052	Theta and gamma opposite signs Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options greeks theta gamma	2000	x0
✓	rb_ch02_q053	Riskless rate zero stock one year either 130 or 70 call value Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options binomial-tree risk-neutral	1900	x0
✓	rb_ch02_q054	(**) Product call max(S1 S2 - X, 0) Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options exotic-options multi-asset	2000	x0
✓	rb_ch02_q055	Asian options cheaper or more expensive Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options asian-options exotic	1800	x0
✓	rb_ch02_q056	American vanilla call as European put Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options early-exercise American-vs-European	2000	x0
✓	rb_ch02_q057	Nodes in recombining vs non-recombining binomial tree Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	binomial-tree counting	2100	x0
✓	rb_ch02_q058	Long foreign stock rising no insider Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	derivatives long-position leverage	2000	x0
✓	rb_ch02_q059	(**) Call priced at c today expected price tomorrow Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options expected-price martingale	2200	x0
✓	rb_ch02_q060	(**) Question 2.59 negative theta reconciliation Red Book (Heard on the Street) · Ch 2 · Derivatives Questions	options theta expected-return	2100	x0
✓	rb_ch03_q001	St. Petersburg game Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	probability expectation st-petersburg-paradox	1400	x0
✓	rb_ch03_q002	Continuously compounded annual variance Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	finance volatility-scaling	1500	x0
✓	rb_ch03_q003	Five-year spot 10%, ten-year spot 15% implied forward Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income forward-rates term-structure	1500	x0
✓	rb_ch03_q004	Yield on a bond vs rate of return on a bond Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income yield return	1300	x0
✓	rb_ch03_q005	Chaos theory predict stock returns Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	finance chaos-theory predictability	1600	x0
✓	rb_ch03_q006	Bond price vs yield curve convex Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income convexity graphs	1400	x0
✓	rb_ch03_q007	Plot of E(r) vs beta CAPM violations Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	finance capm anomalies	1700	x0
✓	rb_ch03_q008	Term-structure 7.60% 7.15% implied forward Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income forward-rates	1600	x0
✓	rb_ch03_q009	Six-month forward on 10-year discount bond Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income forward-premium coupon-bonds	1500	x0
✓	rb_ch03_q010	Yield curve steepens strategy bond Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income yield-curve-strategy	1700	x0
✓	rb_ch03_q011	Define duration convexity properties uses Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income duration convexity	1800	x0
✓	rb_ch03_q012	GARCH(1,1) model qualitative Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	statistics garch time-series	1700	x0
✓	rb_ch03_q013	Limit exposure 30-year long bond Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income duration-matching	1600	x0
✓	rb_ch03_q014	Mexican Brady bond yield change Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income Brady-bonds interest-rate-sensitivity	1700	x0
✓	rb_ch03_q015	Yield curve corporate vs treasuries strategy Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income yield-curve credit-spread	1800	x0
✓	rb_ch03_q016	Five-year rate 10% ten-year rate 15% forward Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	fixed-income forward-rates intuition	1700	x0
✓	rb_ch03_q017	Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	finance expected-value discounting	1600	x0
✓	rb_ch03_q018	20 traders 100 stocks SEC announcement Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	finance market-microstructure information	1700	x0
✓	rb_ch03_q019	Two stocks same expected return 20%/30%, corr 50% Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	finance portfolio-optimization variance	1900	x0
✓	rb_ch03_q020	Same stocks 10%/40% corr 50% Red Book (Heard on the Street) · Ch 3 · Other Financial Economics Questions	finance portfolio-optimization variance	1800	x0
✓	rb_ch04_q001	Two random numbers product greater than 1/2 Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability uniform-distribution integration	1300	x0
✓	rb_ch04_q002	Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability expectation dice	1100	x0
✓	rb_ch04_q003	Four coins more heads than I Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability coin-toss symmetry	1400	x0
✓	rb_ch04_q004	Single die three times stopping rule Red Book (Heard on the Street) · Ch 4 · Statistics Questions	optimal-stopping dice expectation	900	x0
✓	rb_ch04_q005	Correlation X+5 with Y and 5X with Y Red Book (Heard on the Street) · Ch 4 · Statistics Questions	statistics correlation linear-transformation	1100	x0
✓	rb_ch04_q006	(**) Exchange paradox envelopes Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability expectation exchange-paradox	1500	x0
✓	rb_ch04_q007	Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability dynamic-betting binomial	1500	x0
✓	rb_ch04_q008	Three children one apple fair coin Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability fair-allocation coin-toss	1600	x0
✓	rb_ch04_q009	Expected tosses Q4.8 Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability expectation geometric	1300	x0
✓	rb_ch04_q010	Fair coin probability 1/3 Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability simulation binary-representation	1500	x0
✓	rb_ch04_q011	Roll die until number repeats expected payoff Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability expectation birthday-problem	1200	x0
✓	rb_ch04_q012	Five cards five Kings Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability combinatorics cards	1400	x0
✓	rb_ch04_q013	(**) Let's Make a Deal Monty Hall first version Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability monty-hall conditional	1000	x0
✓	rb_ch04_q014	(**) Monty Hall random audience member Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability monty-hall random-reveal	1100	x0
✓	rb_ch04_q015	Two jars 100 marbles blindfolded Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability optimization puzzle	1200	x0
✓	rb_ch04_q016	(***) Mr 30 Mr 60 Mr 90 duel survival Red Book (Heard on the Street) · Ch 4 · Statistics Questions	game-theory probability truel	1200	x0
✓	rb_ch04_q017	Basketball down two points six seconds three-point shot Red Book (Heard on the Street) · Ch 4 · Statistics Questions	decision-theory basketball probability	1300	x0
✓	rb_ch04_q018	Red Book (Heard on the Street) · Ch 4 · Statistics Questions	expected-value decision-theory	1300	x0
✓	rb_ch04_q019	Parlay card 10-to-1 odds five matches Red Book (Heard on the Street) · Ch 4 · Statistics Questions	expected-value parlay-bet	1100	x0
✓	rb_ch04_q020	Standard deviation of (1,2,3,4,5) Red Book (Heard on the Street) · Ch 4 · Statistics Questions	statistics standard-deviation	1000	x0
✓	rb_ch04_q021	Russian roulette revolver six chambers two bullets consecutive Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability conditional russian-roulette	1200	x0
✓	rb_ch04_q022	Large jar 999 fair pennies one two-headed Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability bayes-theorem	1300	x0
✓	rb_ch04_q023	Four cards shuffled water earth wind fire Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability card-game	1100	x0
✓	rb_ch04_q024	Marble game red blue draws Red Book (Heard on the Street) · Ch 4 · Statistics Questions	game-theory mixed-strategies	1300	x0
✓	rb_ch04_q025	Coin machine probability P uniform 1000 flips 750 Red Book (Heard on the Street) · Ch 4 · Statistics Questions	statistics bayesian beta-distribution	1200	x0
✓	rb_ch04_q026	Expected value e^X X normal Red Book (Heard on the Street) · Ch 4 · Statistics Questions	statistics log-normal MGF	1300	x0
✓	rb_ch04_q027	Red Book (Heard on the Street) · Ch 4 · Statistics Questions	decision-theory risk-aversion variance	1300	x0
✓	rb_ch04_q028	Unfair coin expected tosses two heads in a row Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability expectation markov-chain	1400	x0
✓	rb_ch04_q029	1000 people 60% A 40% B margin of error Red Book (Heard on the Street) · Ch 4 · Statistics Questions	statistics margin-of-error binomial	1300	x0
✓	rb_ch04_q030	Disease 0.5% population test 7% false positive Red Book (Heard on the Street) · Ch 4 · Statistics Questions	statistics bayes-theorem diagnostic-test	1500	x0
✓	rb_ch04_q031	Red Book (Heard on the Street) · Ch 4 · Statistics Questions	combinatorics stars-and-bars	1700	x0
✓	rb_ch04_q032	(**) Chocolate chip cookies probability 90% one chip Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability poisson coupon-collector	1700	x0
✓	rb_ch04_q033	Roll fair die until game stops six expected payoff Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability expectation stopping-time	1500	x0
✓	rb_ch04_q034	Four boxes pebble Box 1 transitions Red Book (Heard on the Street) · Ch 4 · Statistics Questions	markov-chain expected-hitting-time	1900	x0
✓	rb_ch04_q035	Stick three pieces triangle probability Red Book (Heard on the Street) · Ch 4 · Statistics Questions	geometric-probability triangle-inequality	1600	x0
✓	rb_ch04_q036	(**) Expected length of longest piece Red Book (Heard on the Street) · Ch 4 · Statistics Questions	order-statistics expectation uniform-distribution	1700	x0
✓	rb_ch04_q037	Two children one is girl probability two girls Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability conditional boy-girl-paradox	1400	x0
✓	rb_ch04_q038	Two children door girl appears probability two girls Red Book (Heard on the Street) · Ch 4 · Statistics Questions	probability conditional boy-girl-paradox	1600	x0
✓	rb_ch04_q039	Train station 1pm-2pm 15 minutes meeting Red Book (Heard on the Street) · Ch 4 · Statistics Questions	geometric-probability uniform-distribution	1500	x0

1	inderjeet230502	1218
2	kalash.kankaria	1205