QuantForcesquant interview practice

RB_CH04_Q022. Large jar 999 fair pennies one two-headed

difficulty 1300·answer type: expression·Not solved

Problem

You have a large jar containing 999 fair pennies and one two-headed penny. Suppose you pick one coin out of the jar and flip it 10 times and get all heads. What is the probability that the coin you chose is the two-headed one?

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