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Service calls arriving at an electric company follow a Poisson distribution with an average arrival rate of 31 per hour. Using the normal approximation to the Poisson, find the probability that the electric company receives at least 38 service calls per hour. Round your answer to four decimal places, if necessary.

Service calls arriving at an electric company follow a Poisson distribution with an average arrival rate of 31 per hour. Using the normal approximation to the Poisson, find the probability that the electric company receives at least 38 service calls per hour. Round your answer to four decimal places, if necessary.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Service calls arriving at an electric company follow a Poisson distribution with an average arrival rate of 31 per hour. Using the normal approximation to the Poisson, find the probability that the electric company receives at least 38 service calls per hour. Round your answer to four decimal places, if necessary. 
 
 
 
Expert Solution
Step 1: Given information:

The X is the random variable representing service calls arriving at an electric company.
X tilde P o i s s o n left parenthesis lambda equals 31 right parenthesis


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