Arrivals in a university advising office during the week of registration are known to follow a Poisson distribution with an average of 4 people arriving each hour.
(a)What is the probability that exactly 4 people will arrive in the next hour?
(b)What is the probability that exactly 5 people will arrive in the next hour?

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The Answer of Arrivals in a university advising office during the week of registration are known to follow a Poisson distribution with an average of 4 people arriving each hour.
(a)What is the probability that exactly 4 people will arrive in the next hour?
(b)What is the probability that exactly 5 people will arrive in the next hour?

Arrivals in a University Advising Office During the Week of Registration