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Arrivals at a fast-food restaurant follow a Poisson distribution with a mean arrival rate of...

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Accounting

Arrivals at a fast-food restaurant follow a Poisson distribution with a mean arrival rate of 5 customers per hour.

(a) What is the probability that in the next hour there will be exactly 7 arrivals?

(b) What is the probability that in the next hour there will be exactly 2 arrivals?

You should show your work for full credit.

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