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Elongation (in percent) of steel plates treated with

Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi ISBN: 9780073401331 38

Solution for problem 14E Chapter 2.4

Statistics for Engineers and Scientists | 4th Edition

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Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi

Statistics for Engineers and Scientists | 4th Edition

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Problem 14E

Elongation (in percent) of steel plates treated with aluminum are random with probability density function

 a. What proportion of steel plates have elongations greater than 25%?

b. Find the mean elongation.

c. Find the variance of the elongations.

d. Find the standard deviation of the elongations.

e. Find the cumulative distribution function of the elongations.

f. A particular plate elongates 28%. What proportion of plates elongate more than this?

Step-by-Step Solution:

Solution

 

Step 1 of 5

Here given elongation of steel plates treated with aluminium are random

The given pdf is

                                 =0,      Otherwise

a) we need to find the proportion of steel plates have elongation greater than 25%

    

                   

                   

                   =1.8-1.25

               =0.55

   The proportion of steel plates have elongation greater than 25% is 0.55


Step 2 of 5

Chapter 2.4, Problem 14E is Solved
Step 3 of 5

Textbook: Statistics for Engineers and Scientists
Edition: 4
Author: William Navidi
ISBN: 9780073401331

Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331. The answer to “Elongation (in percent) of steel plates treated with aluminum are random with probability density function a. What proportion of steel plates have elongations greater than 25%?________________b. Find the mean elongation.________________c. Find the variance of the elongations.________________d. Find the standard deviation of the elongations.________________e. Find the cumulative distribution function of the elongations.________________f. A particular plate elongates 28%. What proportion of plates elongate more than this?” is broken down into a number of easy to follow steps, and 64 words. The full step-by-step solution to problem: 14E from chapter: 2.4 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM. This full solution covers the following key subjects: elongations, Find, plates, proportion, function. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. Since the solution to 14E from 2.4 chapter was answered, more than 2627 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4.

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Elongation (in percent) of steel plates treated with