Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 1 - Introduction to Statistics - 1-2 Statistical and Critical Thinking - Beyond the Basics - Page 15: 39



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.
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