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Assume customers arrive at a computer repair shop as a Poisson process with rate of 20...

Assume customers arrive at a computer repair shop as a Poisson process with rate of 20 per hour. For each of the following, identify the distribution including its parameters, and find the indicated probabilities.

  1. Let X be the number of customers that arrive in the next hour. Find P(X=16) .
  2. Let Y be the number of customers that arrive in the next 30 minutes. Find P(Y>6) .
  3. Let T be the waiting time until the next customer arrives. Find P(T >5 minutes) .
  4. Let T be the waiting time until the 30th customer arrives. Find the mean and variance of T and P(T≤2 hours)
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