The time it takes an international telephone operator to place an overseas phone call is normally distributed

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The time it takes an international telephone operator to place an overseas phone call is normally distributed with mean 45 seconds and standard deviation 10 seconds.

a. What is the probability that my call will go through in less than 1 minute?

b. What is the probability that I will get through in less than 40 seconds?

c. What is the probability that I will have to wait more than 70 seconds for my call to go through?

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Complete Business Statistics

ISBN: 9780077239695

7th Edition

Authors: Amir Aczel, Jayavel Sounderpandian

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Question Posted: Jun 03, 2015 05:49 AM

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The time it takes an international telephone operator to place an overseas phone call is normally distributed

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X N45 10 2 a PX 60 PZ 15 5 ...View the full answer

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