1. The number of telephone calls to emergency phone numbers per hour is assumed to follow a normal distribution with a mean of 7.5 calls per hour and a standard deviation of 2.1 calls per hour. What is the probability that between 5 and 10 calls are received per hour? (A) 0.116 (B) 0.750 (C) 0.766 (D) 0.883

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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1. The number of telephone calls to emergency phone numbers per hour is assumed to follow a
normal distribution with a mean of 7.5 calls per hour and a standard deviation of 2.1 calls
per hour. What is the probability that between 5 and 10 calls are received per hour?
(A) 0.116
(B) 0.750
(C) 0.766
(D) 0.883
Transcribed Image Text:1. The number of telephone calls to emergency phone numbers per hour is assumed to follow a normal distribution with a mean of 7.5 calls per hour and a standard deviation of 2.1 calls per hour. What is the probability that between 5 and 10 calls are received per hour? (A) 0.116 (B) 0.750 (C) 0.766 (D) 0.883
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