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Determine the mean and variance of the random | Ch 4.4 - 42E

Applied Statistics and Probability for Engineers | 6th Edition | ISBN: 9781118539712 | Authors: Douglas C. Montgomery, George C. Runger ISBN: 9781118539712 55

Solution for problem 42E Chapter 4.4

Applied Statistics and Probability for Engineers | 6th Edition

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Applied Statistics and Probability for Engineers | 6th Edition | ISBN: 9781118539712 | Authors: Douglas C. Montgomery, George C. Runger

Applied Statistics and Probability for Engineers | 6th Edition

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Problem 42E

Problem 42E

Determine the mean and variance of the random variable in Exercise 4-14.

Step-by-Step Solution:

Solution

Step 1 of 2

We have to find the mean and variance of the random variable

The given probability density function is

                                                                          =

  Mean=

           =

           =

          =

          =786.667-1711.67

          = -925.003


Step 2 of 2

Chapter 4.4, Problem 42E is Solved
Textbook: Applied Statistics and Probability for Engineers
Edition: 6
Author: Douglas C. Montgomery, George C. Runger
ISBN: 9781118539712

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Determine the mean and variance of the random | Ch 4.4 - 42E