Problem 2If bolt thread length is normally distributed, what is the probability that the thread length of arandomly selected bolt isa. Within 1.5 standard deviations of its mean value?b. Farther than 2.5 standard deviations from its mean value?

Answered: a. Within 1.5 standard deviations of…

Math

Probability

a. Within 1.5 standard deviations of its mean value? b. Farther than 2.5 standard deviations from its mean value?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

Problem 2
If bolt thread length is normally distributed, what is the probability that the thread length of a
randomly selected bolt is
a. Within 1.5 standard deviations of its mean value?
b. Farther than 2.5 standard deviations from its mean value?

Expert Solution

Step 1: Mentioning given information

bolt thread length is normally distributed..

Here use random variable X for bolt thread length.

Step by step

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