Question: 5. The number, N, using a certain computer terminal at the basement of Burnside Hall during time interval of length & between 8:00 pm and

5. The number, N, using a certain computer terminal at the basement of Burnside Hall during time interval of length & between 8:00 pm and 10:00 pm has a Poisson distribution with mean f. Give an expression for the probability that there are exactly 2 users at the computer terminal in a time interval of length t. Do the same if the time interval is of length 3t

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