Question: Calling tech support. The number of calls received between 8 A.M. and 9 A.M. by a software developers technical support line has a Poisson distribution

Calling tech support. The number of calls received between 8 A.M. and 9 A.M. by a software developer’s technical support line has a Poisson distribution with a mean of 14.

(a) What is the probability of at least 5 calls between 8 A.M. and 9 A.M.?

(b) What is the probability of at least 5 calls between 8:15 A.M.

and 8:45 A.M.?

(c) What is the probability of at least 5 calls between 8:15 A.M.

and 8:30 A.M.?

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