9. In a small municipality, emergency calls to 911 come in at the rate of one every two minutes. (Round your answer to four decimal places. Make sure you don't include unnecessary spaces and write ZERO before the decimal point.) to. What is the expected number of calls in an hour? b.What is the probability of receiving three calls in five minutes? c. What is the probability that no one calls in a five-minute period?

9. In a small municipality, emergency calls to 911 come in at the rate of one every two minutes. (Round your answer to four decimal places. Make sure you don't include unnecessary spaces and write ZERO before the decimal point.) to. What is the expected number of calls in an hour? b.What is the probability of receiving three calls in five minutes? c. What is the probability that no one calls in a five-minute period?

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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