# Poisson distribution probability

Assume that the number of Telephone calls arriving in an office during a 15 minute period has a Poisson distribution with mean number of calls equal 5. By using a Poisson Distribution Formula, find the Probability that during a 15minute period, there will be exactly 3 calls.

Â© BrainMass Inc. brainmass.com March 4, 2021, 6:07 pm ad1c9bdddfhttps://brainmass.com/statistics/probability/probability-poisson-distribution-formula-30164

#### Solution Summary

This solution shows how to find a probability by using a Poisson Distribution Formula.

$2.49