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distribution with an average of $400 per month and a standard deviation of $50 per month. Refer to such expenses PCE's (personal call expenses). Using the distribution above, what is the probability that a randomly selected mont a PCE of between $275 and $490? Round to four decimal places. OA. 0.9579 B. 0.9999 C. 0.0421 D. 0.0001 ...

distribution with an average of $400 per month and a standard deviation of $50 per month. Refer to such expenses PCE's (personal call expenses). Using the distribution above, what is the probability that a randomly selected mont a PCE of between $275 and $490? Round to four decimal places. OA. 0.9579 B. 0.9999 C. 0.0421 D. 0.0001 ...

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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A new phone system was installed last year to help reduce the expense of personal calls that were being made by employees. Before the new system was installed, the amount being spent on personal calls followed a normal distribution with an average of $400 per month and a standard deviation of $50 per month. Refer to such expenses as PCE's (personal call expenses). Using the distribution above, what is the probability that a randomly selected month had a PCE of between $275 and $490? Round to four decimal places. OA. 0.9579 OB. 0.9999 OC. 0.0421 OD. 0.0001 ...
Transcribed Image Text:A new phone system was installed last year to help reduce the expense of personal calls that were being made by employees. Before the new system was installed, the amount being spent on personal calls followed a normal distribution with an average of $400 per month and a standard deviation of $50 per month. Refer to such expenses as PCE's (personal call expenses). Using the distribution above, what is the probability that a randomly selected month had a PCE of between $275 and $490? Round to four decimal places. OA. 0.9579 OB. 0.9999 OC. 0.0421 OD. 0.0001 ...
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