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An e-mail message will arrive at a time uniformly distributed between 9:00 a.m. and 11:00 a.m. You check e-mail at

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An e-mail message will arrive at a time uniformly distributed between 9:00 a.m. and 11:00 a.m. You check e-mail at 9:15 a.m. and every 30 minutes afterward.

(a) What is the standard deviation of arrival time (in minutes)?

(b) What is the probability that the message arrives less than 10 minutes before you view it?

(c) What is the probability that the message arrives more than 15 minutes before you view it?

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Related Book For  answer-question
Applied Statistics And Probability For Engineers

Applied Statistics And Probability For Engineers

ISBN: 9781118539712

6th Edition

Authors: Douglas C. Montgomery, George C. Runger

See More Books
Question Details
Chapter # 4- Continuous Random Variables and Probability Distributions
Section: Exercises
Problem: 59
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Question Posted: June 25, 2018 00:45:03
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