SOLUTION: Assume that the probability is .5 that a child is born a boy and births are independent. What is the probability that if a family will have 4 children (no twins) they will all be b
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Question 437292: Assume that the probability is .5 that a child is born a boy and births are independent. What is the probability that if a family will have 4 children (no twins) they will all be boys? Answer by ewatrrr(24785) (Show Source):
Hi
Note: The probability of x successes in n trials is:
P = nCx* where p and q are the probabilities of success and failure respectively.
In this case p & q are = 1/2 or .5
nCx =
P(family/four children, will have 4 boys) = (.5)^4
