At a large government office center in Chicago, it has been found out that the time employees spend on the phone each day for business purposes has a normal distribution with mean 47 mins and standard deviation of 10 mins If an employee is selected at random, what is the probability of the following: a. from 27 to 67 mins in phone each day? b. from 37 to 57 on the phone each day? c. 47 or fewer minutes on phone each day?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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At a large government office center in Chicago, it has been found out that the time employees spend on
the phone each day for business purposes has a normal distribution with mean 47 mins and standard deviation of 10 mins
If an employee is selected at random, what is the probability of the following:
a. from 27 to 67 mins in phone each day?
b. from 37 to 57 on the phone each day?
c. 47 or fewer minutes on phone each day?
Transcribed Image Text:At a large government office center in Chicago, it has been found out that the time employees spend on the phone each day for business purposes has a normal distribution with mean 47 mins and standard deviation of 10 mins If an employee is selected at random, what is the probability of the following: a. from 27 to 67 mins in phone each day? b. from 37 to 57 on the phone each day? c. 47 or fewer minutes on phone each day?
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