BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1.7, Problem 121E
To determine

The range of height of adult males.

Expert Solution

Answer to Problem 121E

The range for the height of the adult male is between 62.4 in and 74.0 in_.

Explanation of Solution

The average height of the male is 68.2in, and 95% of adults have height h and satisfies the inequality |h68.22.9|2.

Solve |h68.22.9|2 for h as follows:

|h68.22.9|2|h2.968.22.9|22h2.968.22.92

Further solve the above as follows:

68.22.92h2.968.22.9+221.5172h2.925.517262.4inh74in

Thus, the range for the height of the adult male is between 62.4 in and 74.0 in_.

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