7.44 Suppose that in a certain metropolitan area, nine out of 10 households have cable TV. Let...

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7.44 Suppose that in a certain metropolitan area, nine out of 10 households have cable TV. Let x denote the number among four randomly selected households that have cable TV, so x is a binomial random variable with n 5 4 and p 5 .9.

a. Calculate p(2) 5 P(x 5 2), and interpret this probability.

b. Calculate p(4), the probability that all four selected households have cable TV.

c. Determine P(x 3).

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Introduction To Statistics And Data Analysis

ISBN: 9780840054906

4th Edition

Authors: Roxy Peck, Chris Olsen, Jay L. Devore

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Question Posted: Sep 11, 2024 05:01 AM

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7.44 Suppose that in a certain metropolitan area, nine out of 10 households have cable TV. Let...

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Introduction To Statistics And Data Analysis

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