Suppose that in a certain metropolitan area, 9 out of 10
Chapter 0, Problem 7.46(choose chapter or problem)
Suppose that in a certain metropolitan area, 9 out of 10 households have a VCR. Let x denote the number among four randomly selected households that have a VCR, so x is a binomial random variable with n 4 and p .9. a. Calculate p(2) P(x 2), and interpret this probability. b. Calculate p(4), the probability that all four selected households have a VCR. c. Determine P(x 3).
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