SOLUTION: When a group of five single births are recorded what is the probability that at least 4 are boys. Assume that boys and girls are equally likely. (Hint: Need a probability distribut

Question 411367: When a group of five single births are recorded what is the probability that at least 4 are boys. Assume that boys and girls are equally likely. (Hint: Need a probability distribution)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
When a group of five single births are recorded what is the probability that at least 4 are boys. Assume that boys and girls are equally likely. (Hint: Need a probability distribution)
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Since each birth is either boy or girl this is
a binomial probability problem.
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n = 5 ; p = 1/2
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P(x >=4) = 1 - binomcdf(5,0.5,3) = 0.1875
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Cheers,
Stan H.
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