Poisson distribution with a mean of 4 per hour

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Reference no: EM131827024

The number of phone calls that arrive at a secretary's desk has a Poisson distribution with a mean of 4 per hour.

a. What is the probability that no phone calls arrive in a given hour?

b. What is the probability that more than 2 calls arrive within a given hour?

Reference no: EM131827024

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