Probability chosen half-hour period no more use service desk

Reference no: EM13150822

The manager of the local grocery store has determined that, on the average, 4 customers use the service desk every half-hour. Assume that the number of customers using the service desk has a Poisson distribution. What is the probability that during a randomly selected half-hour period no more than 2 customers use the service desk?

Reference no: EM13150822

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