Graph the PMF and survival function of cancelation time for the ISP having a retention rate of 80%. Find and interpret the mean time of cancelation. Suppose the ISP implements a new retention campaign and is able to increase the retention rate to 90%. Graph the PMF and find the mean under this new retention rate. (Hint) expected time E(T) = 1/(1-.8) = 5 months / Copy and paste graph here.

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The probabilities are computed using Pt 8t11 8 and plotted in Figure 31 the reader should replicate ... View the full answer