Expected number of calls in one hour


During the period of time that a local university takes phone-in registrations, calls come in at the rate of one every two minutes.

a. What is the expected number of calls in one hour?

b. What is the probability of *exactly* three calls in five minutes (to 4 decimals)?

c. What is the probability of no calls in a five-minute period (to 4 decimals)?

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Business Management: Expected number of calls in one hour
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