Answer
Impossible.
Work Step by Step
We have only 20 people who answered and a number smaller than 20 divided by 20 must end up being a multiple of 5, therefore the percentages have to be multiples of 5. Therefore 87% and 13% are impossible.
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: 39
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