Question 136010: in a family of six children, what is the probability of having at least three girls?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! in a family of six children, what is the probability of having at least three girls?
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That also is a binomial problem.
You want Prob(3 or 4 or 5 or 6 girls in 6 "experiments")
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That can be done with a binomial chart, which you might have, or
with a calculator:
Ans: P(at least3 in 6) = 1 - binomcdf(6,1/2,2) = 0.65625...
Cheers,
Stan H.
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