Explanation Given: Consider again the car described in Exercise 6. On about what percentage of the trips will your gas mileage be above 43 miles per gallon? a.16% b.2.5% c.68% P ( X > 43 ) = P ( z > ( x − ( μ ) ) / ( ( σ ) ) ) = P ( z > ( 43 − 40 ) / 3 ) = P ( z > 3 / 3 ) = P ( z > 1 )

Using and Understanding Mathematics: A Quantitative Reasoning Approach (6th Edition)

6th Edition

ISBN: 9780321914620

Author: Jeffrey O. Bennett, William L. Briggs

Publisher: PEARSON

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Chapter 6.C, Problem 7QQ

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Chapter 6 Solutions

Using and Understanding Mathematics: A Quantitative Reasoning Approach (6th Edition)

Ch. 6.A - Prob. 1QQ Ch. 6.A - On a math exam, one student scores 79 while 25...Ch. 6.A - One hundred students take a chemistry exam. All...Ch. 6.A - Twenty students take a political science exam....Ch. 6.A - A survey asks students to state many sodas they...Ch. 6.A - Among professional actors, a small number of...Ch. 6.A - The distribution of wages at a company is...Ch. 6.A - Compared to a distribution with a broad central...Ch. 6.A - Prob. 9QQ Ch. 6.A - The mayor of a town is considering a run for...

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