SOLUTION: Suppose the probability that a new born baby is male is 0.5. If four infants are chosen at random, what is the probability that two are male and two are female?

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Question 915427: Suppose the probability that a new born baby is male is 0.5. If four infants are chosen at random, what is the probability that two are male and two are female?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p(male) = .5 , n = 4
P(2M & 2F) = P(x = 2) = normalpdf(4, .5, 2) 0r P = 4C2(.5)^2(.5)2 = .375