Question: Let the random variable x represent length of time (in minutes) between calls to an emergency number in a small town. assume that the calls

Let the random variable x represent length of time (in minutes) between calls to an emergency number in a small town. assume that the calls in to the switchboard according to a poisson process at the rate of one call per ten minutes. What's the probability that the waiting time until the arrival of the first call after 10 AM is greater than 20 minutes? Solve this problem by: A) the exponential distribution B) the Poisson distribution

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