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fun0463
Mar 1, 2010, 03:06 AM
Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children. Find the probability of exactly eight boys in ten births.

Curlyben
Mar 1, 2010, 03:11 AM
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galactus
Mar 1, 2010, 03:22 AM
Use a binomial:

P(\text{8 boys})=C(10,8)(\frac{1}{2})^{8}(\frac{1}{2})^{2}