SOLUTION: If the probability of a boy’s being born is 1/2, and a family plans to have four children, what are the odds against having all boys?

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Question 1200789: If the probability of a boy’s being born is 1/2, and a family plans to have four children, what are the odds against having all boys?
Answer by Alan3354(69443) About Me  (Show Source):
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If the probability of a boy’s being born is 1/2, and a family plans to have four children, what are the odds against having all boys?
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the probability of having 4 boys (or 4 girls) is (1/2)^4 = 1/16
The odds of that are 1:15
The odds against it are 15 to 1.