Statistics: Informed Decisions Using Data (4th Edition)

by Sullivan III, Michael

Published by Pearson

ISBN 10: 0321757270

ISBN 13: 978-0-32175-727-2

Chapter 2 - Review - Review Exercises - Page 120: 6c

Answer

$72$%

Work Step by Step

It is the sum of the relative frequencies of the first three classes: "50,000–99,999", "100,000–149,999" and "150,000–199,999". That is, the cumulative relative frequency of "150,000–199,999 " $=0.72=72$%

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