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Get Full Access to Applied Statistics And Probability For Engineers - 6 Edition - Chapter 3.4 - Problem 60e
Get Full Access to Applied Statistics And Probability For Engineers - 6 Edition - Chapter 3.4 - Problem 60e

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# Determine the mean and variance of the random variable in

ISBN: 9781118539712 55

## Solution for problem 60E Chapter 3.4

Applied Statistics and Probability for Engineers | 6th Edition

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Problem 60E Problem 60E

Determine the mean and variance of the random variable in Exercise 3-18.

Step-by-Step Solution:

Step 1 of 1

(a)

We have given the probability mass function (PMF)

We are asked to find the mean and variance of the random variable.

We can form the probability mass function (PMF) table:

The mean or expected value of the discrete random variable  denote a  is

……….(1)

Using the PMF table, we can write the mean of a random variable,

Hence the mean of a random variable  is

The variance  of the discrete random variable  denote a  is

……….(2)

Hence the variance of a random variable  is

Step 2 of 1

##### ISBN: 9781118539712

Applied Statistics and Probability for Engineers was written by and is associated to the ISBN: 9781118539712. This full solution covers the following key subjects: determine, exercise, mean, random, variable. This expansive textbook survival guide covers 97 chapters, and 2005 solutions. This textbook survival guide was created for the textbook: Applied Statistics and Probability for Engineers , edition: 6. The answer to “Determine the mean and variance of the random variable in Exercise 3-18.” is broken down into a number of easy to follow steps, and 12 words. The full step-by-step solution to problem: 60E from chapter: 3.4 was answered by , our top Statistics solution expert on 07/28/17, 07:57AM. Since the solution to 60E from 3.4 chapter was answered, more than 404 students have viewed the full step-by-step answer.

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