5.59 Customer arrivals at a checkout counter in a department store have a Poisson distribution with an

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5.59 Customer arrivals at a checkout counter in a department store have a Poisson distribution with an average of eight per hour. For a given hour, find the probability that a Exactly eight customers arrive.

b No more than three customers arrive.

c At least two customers arrive.

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Probability And Statistics For Engineers

ISBN: 9781133006909

5th Edition

Authors: Richard L Scheaffer, Madhuri Mulekar, James T McClave, Cecie Starr

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