In a family with 2 children, the probability that both children will be boys is 1/4. Suppose

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In a family with 2 children, the probability that both children will be boys is 1/4. Suppose 1200 families with two children are selected at random.

(a) How many of the families would we expect to have 2 boys?

(b) What is the standard deviation of the number of families with 2 boys?

(c) Suppose that of the 1200 families, 315 families have two boys. How many standard deviations above the mean is this number (315) of families?

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Mathematical Applications For The Management, Life And Social Sciences

ISBN: 9781337625340

12th Edition

Authors: Ronald J. Harshbarger, James J. Reynolds

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Question Posted: Oct 28, 2020 04:31 AM

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In a family with 2 children, the probability that both children will be boys is 1/4. Suppose

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Mathematical Applications For The Management, Life And Social Sciences

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