33. The lifetime of a color television picture tube is a normal random variable with mean 8.2...

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33. The lifetime of a color television picture tube is a normal random variable with mean 8.2 years and standard deviation 1.4 years. What percentage of such tubes lasts

(a) more than 10 years;

(b) less than 5 years;

(c) between 5 and 10 years?

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Introduction To Probability And Statistics For Engineers And Scientists

ISBN: 9780125980579

3rd Edition

Authors: Sheldon M. Ross

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Question Posted: Sep 11, 2024 07:01 AM

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33. The lifetime of a color television picture tube is a normal random variable with mean 8.2...

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Introduction To Probability And Statistics For Engineers And Scientists

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