Question 832993: The Martinos plan to have four children. Find the probability that all their children will be boys.
(Assume that P(boy) = ½, and assume independence.)
b. If their first four children are boys and Mrs. Martino is expecting another child, what is the
probability that the fifth child will be a boy?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! The Martinos plan to have four children.
Find the probability that all their children will be boys.
Ans: (1/2)^4 = 1/16
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(Assume that P(boy) = ½, and assume independence.)
b. If their first four children are boys and Mrs. Martino is expecting another child, what is the probability that the fifth child will be a boy?
Ans: 1/2 because the birth results are independent.
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Cheers,
Stan H.
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