Mathematics, 26.02.2021 07:30 tiwaribianca475
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.
(a) Calculate and interpret the mean of X.
(b) Calculate and interpret the standard deviation of X
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When a polling company calls a telephone number at random, there is only a 9% chance that the call r...
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