SOLUTION: What is probability of having less than 3 boys in a family if there are four children total?

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Question 581798: What is probability of having less than 3 boys in a family if there are four children total?
Answer by stanbon(75887) About Me  (Show Source):
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What is probability of having less than 3 boys in a family if there are four children total?
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Binomial with n = 4 and p(boy) = P(girl) = 1/2
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P(0<= x <=2) = binomcdf(4,1/2,2) = 0.6875
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Cheers,
Stan H.