SOLUTION: a couple has 3 children. find the probability that the couple has at least one of each gender

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Question 284714: a couple has 3 children. find the probability that the couple has at least one of each gender
Answer by stanbon(75887) About Me  (Show Source):
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a couple has 3 children. find the probability that the couple has at least one of each gender
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P(at least one boy and one girl) = 1 - [P(no boys)+P(no girls)]
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= 1 - [(1/8) + (1/8)]
= 6/8 = 3/4
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Cheers,
Stan H.