Answer
All the percentages have to be divisble by 5.
Work Step by Step
The number that our numbers have to be divided by is 20. Therefore all the percentages have to be divisble by 5.
Essentials of Statistics (5th Edition)
by Triola, Mario F.
Published by
Pearson
ISBN 10:
0-32192-459-2
ISBN 13:
978-0-32192-459-9
Chapter 1 - Introduction to Statistics - 1-2 Statistical and Critical Thinking - Page 15: 38
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