QuantForcesquant interview practice

RB_CH04_Q037. Two children one is girl probability two girls

difficulty 1400·answer type: strategy·Not solved

Problem

I tell you that I have two children and that one of them is a girl (I say nothing about the other). What is the probability that I have two girls? Assume that boys and girls are equally likely to be born and that the gender of one child is independent of another.

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