An argument similar to that of Exercise 4.168 can be used to show that if events are
Chapter 4, Problem 4.169(choose chapter or problem)
An argument similar to that of Exercise 4.168 can be used to show that if events are occurring in time according to a Poisson distribution with mean t, then the interarrival times between events have an exponential distribution with mean 1/. If calls come into a police emergency center at the rate of ten per hour, what is the probability that more than 15 minutes will elapse between the next two calls?
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