# Question

If arrivals follow a Poisson distribution with mean 1.2 arrivals per minute, find the probability that the waiting time until the next arrival will be

(a) Less than 1.5 minutes;

(b) More than 30 seconds;

(c) Between 1 and 2 minutes.

(a) Less than 1.5 minutes;

(b) More than 30 seconds;

(c) Between 1 and 2 minutes.

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