SOLUTION: what the probability that exacly 4 boys in 10 births

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Question 675744: what the probability that exacly 4 boys in 10 births
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi

probability that exacly 4 boys in 10 births = 10C4%28.5%29%5E4%28.5%29%5E6

Note: The probability of x successes in n trials is: 

P = nCx* p%5Ex%2Aq%5E%28n-x%29 where p and q are the probabilities of success and failure respectively. 

In this case p & q are = 1/2 or .5   and n = 10