Answer
151 students were involved in this study.
Work Step by Step
To find the number of students involved in the study, you add all the frequencies together.
2 + 1 + 3 + 12 + 16 + 18 + 13 + 31 + 26 + 15 + 14 = 151
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 12 - Statistics - 12.1 Sampling, Frequency Distributions, and Graphs - Exercise Set 12.1 - Page 776: 5
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