Answer
20.
Work Step by Step
The height of the point above the 20 is approximately 50%. So, half of the students had a score below 20 and half of the students had a score above 20.
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 - Section 2.3 - Assess Your Understanding - Vocabulary and Skill Building - Page 106: 7d
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