The life spans of car batteries are normally distributed, with a mean of 44 months and a

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The life spans of car batteries are normally distributed, with a mean of 44 months and a standard deviation of 5 months.

(a) Find the probability that the life span of a randomly selected battery is less than 36 months.

(b) Find the probability that the life span of a randomly selected battery is between 42 and 60 months.

(c) What is the shortest life expectancy a car battery can have and still be in the top 5% of life expectancies?

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Elementary Statistics Picturing The World

ISBN: 9781292260464

7th Global Edition

Authors: Betsy Farber, Ron Larson

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Question Posted: Apr 29, 2024 05:01 AM

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The life spans of car batteries are normally distributed, with a mean of 44 months and a

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Elementary Statistics Picturing The World

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