A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.1 years, and standard deviation of 2.2 years.If you randomly purchase one item, what is the probability it will last longer than 9 years?

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.1 years, and standard deviation of 2.2 years.If you randomly purchase one item, what is the probability it will last longer than 9 years?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.1 years, and standard deviation of 2.2 years.

If you randomly purchase one item, what is the probability it will last longer than 9 years?

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