The number of telephone calls that arrive at a phone exchange is often modeled as a Poisson random variable. Assume that on the average there are 10 calls per hour. What is the probability that there are exactly 10 calls in 45 mins? What is the probability there are no calls within 45 mins? O a. NONE O b.0.8622, 0.0006 O. 0.0858, 0.0006 Od.0.1251, 0.000045

The number of telephone calls that arrive at a phone exchange is often modeled as a Poisson random variable. Assume that on the average there are 10 calls per hour. What is the probability that there are exactly 10 calls in 45 mins? What is the probability there are no calls within 45 mins? O a. NONE O b.0.8622, 0.0006 O. 0.0858, 0.0006 Od.0.1251, 0.000045

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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