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A call center receives an average of 10 calls per hour. Assume that the number of calls received follows a Poisson distribution.

(a) What is the probability that exactly 8 calls will be received in the next hour?
(b) What is the probability that more than 7 calls will be received in the next hour?
(c) What is the expected number of calls to be received in the next hour? What is the standard deviation?


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