Suppose that during lean hours in a call center, the number of calls received during any specified time period follows a Poisson distribution and, on average, the call center receives 20 calls in a hour. 1.What is the probability that there will be 25 calls in a 1 hr interval during lean hours? 2.What is the probability that there will be at least 1 call received in a 15 min interval during lean hours?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Suppose that during lean hours in a call center, the number of calls received during any specified time period follows a Poisson distribution and, on average, the call center receives 20 calls in a hour. 1.What is the probability that there will be 25 calls in a 1 hr interval during lean hours? 2.What is the probability that there will be at least 1 call received in a 15 min interval during lean hours?
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