SOLUTION: What is the probability in a family of four children that the first child born is a boy and the last child born is a girl??
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Question 448683: What is the probability in a family of four children that the first child born is a boy and the last child born is a girl?? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! What is the probability in a family of four children that the first child born is a boy and the last child born is a girl??
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Pattern: b??g
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The ?? can be filled in 2*2 = 4 ways
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Total # of b??g patterns is 4
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# of possible 4 child patterns is 2^4 = 16
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P(b??g) = 4/16 = 1/4
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cheers,
Stan H.
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