Since B has already happened, the sample space reduces to B. So the probability of A happening becomes P(A ∩ B) divided by P(B)
Randomized Algorithms
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In a country, all families want a boy. They keep having babies till a boy is born the expected ratio of boys and girls puzzle can be easily solved
Linearity of Expectation Randomized Algorithms – This post is about mathematical concepts like expectation linearity of expectation It covers required topic