A manufacturer of battery claims that the life of his batteries is approximately normally distributed with a mean life of 4 years and a standard deviation equal to one (1) year. What is the probability that the battery last between 2.5 and 5.5 years.a. 0.68b. 0.8664c. 0.95d. 0.32

Suppose the random variable x defines the battery life.

Answered: A manufacturer of battery claims that…

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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A manufacturer of battery claims that the life of his batteries is approximately normally distributed with a mean life of 4 years and a standard deviation equal to one (1) year. What is the probability that the battery last between 2.5 and 5.5 years. a. 0.68 b. 0.8664 c.0.95 d. 0.32