SOLUTION: the sex distribution being equally probable, compute the expected number of girls in a family with 10 children and what is the probability that the expected number of girls occurs
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Question 994662: the sex distribution being equally probable, compute the expected number of girls in a family with 10 children and what is the probability that the expected number of girls occurs? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! the sex distribution being equally probable, compute the expected number of girls in a family with 10 children and what is the probability that the expected number of girls occurs?
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P(girl on each birth) = 1/2
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E(X when X = 10) = (1/2)10 = 5
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P(x = 5) = 10C5(1/2)^10 = 0.24609..
Cheers,
Stan H.
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