Calculate the desired probability. In each case the sample is normally distributed. Sketch a graph in each example. d. A value lies between 119 and 133. If the mean is 128 and the standard deviation is 9.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Calculate the desired probability. In each case the sample is normally distributed. Sketch a graph in each example.

d. A value lies between 119 and 133. If the mean is 128 and the standard deviation is 9. 

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Step 1

Let X=the variable

Given that X follows a normal distribution with mean= 128 and the standard deviation of 9. 

 

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