Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.1 - Graphs and Graphing Utilities - Exercise Set - Page 160: 58

Answer

The greatest number of awakenings for men is 8 times at the age of 65 years.

Work Step by Step

We can observe from the line graph, that at the age of 65 years, men have the greatest number of awakenings during the night. It is seen that the peak of the graph is highest at that age. And for men, the average number of awakenings is 8 times at the age of 65 years.
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