Mathematics, 23.02.2021 02:10 juniorlb01

When a polling company calls a telephone number at random, there is only a 9% chance that the call reaches a live person and the survey is successfully completed. Suppose the random digit dialing machine makes 15 calls. Let X = the number of calls that result in a completed survey. Calculate and interpret µ of X

Calculate and interpret σ of X

What is the probability that at most 2 calls will complete the survey?

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When a polling company calls a telephone number at random, there is only a 9% chance that the call r...