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StatisticsQ&A LibrarySuppose that in a certain metropolitan area, 90% of all households have cable TV. Let x denote the number among four randomly selected households that have cable TV. Then x is a binomial random variable with n = 4 and p = 0.90. (Round your answers to four decimal places.) (a) Calculate p(3) = P(x = 3). (b) Calculate p(4),the probability that all four selected households have cable TV. (c) Calculate P(x ≤ 3).Start your trial now! First week only $4.99!*arrow_forward*

Question

Suppose that in a certain metropolitan area, 90% of all households have cable TV. Let *x* denote the number among four randomly selected households that have cable TV. Then *x* is a binomial random variable with n = 4 and p = 0.90. (Round your answers to four decimal places.)

(a) Calculate p(3) = P(x = 3).

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

(c) Calculate P(x ≤ 3).

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