The lengths of power failures, in minutes, are recorded in the following table. 22 18 135 15 90 78 69 98 102 83 55 28 121 120 13 22 124 112 70 66 74 89 103 24 21 112 21 40 98 87 132 115 21 28 43 37 50 96 118 158 74 78 83 93 95 (a) Find the sample mean and sample median of the power-failure times. (b) Find the sample standard deviation of the powerfailure times.

# The lengths of power failures, in minutes, are recorded in

## Solution for problem 1.21 Chapter 1

Probability and Statistics for Engineers and the Scientists | 9th Edition

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Probability and Statistics for Engineers and the Scientists | 9th Edition

Get Full SolutionsProbability and Statistics for Engineers and the Scientists was written by and is associated to the ISBN: 9780321629111. This textbook survival guide was created for the textbook: Probability and Statistics for Engineers and the Scientists, edition: 9. The full step-by-step solution to problem: 1.21 from chapter: 1 was answered by , our top Statistics solution expert on 05/06/17, 06:21PM. This full solution covers the following key subjects: . This expansive textbook survival guide covers 18 chapters, and 1582 solutions. The answer to “The lengths of power failures, in minutes, are recorded in the following table. 22 18 135 15 90 78 69 98 102 83 55 28 121 120 13 22 124 112 70 66 74 89 103 24 21 112 21 40 98 87 132 115 21 28 43 37 50 96 118 158 74 78 83 93 95 (a) Find the sample mean and sample median of the power-failure times. (b) Find the sample standard deviation of the powerfailure times.” is broken down into a number of easy to follow steps, and 80 words. Since the solution to 1.21 from 1 chapter was answered, more than 272 students have viewed the full step-by-step answer.

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The lengths of power failures, in minutes, are recorded in