Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 2 - Set Theory - 2.1 Basic Set Concepts - Exercise Set 2.1: 108

Answer

{Australia, Unites states, United Kingdom, Switzerland }

Work Step by Step

In the graph, Australia, United States, United Kingdom, Switzerland are having used marijuana at least 8.5% and at most 20% Australia = 18% United States = 12.3% United Kingdom = 9% Switzerland = 8.5% So, {Australia, Unites states, United Kingdom, Switzerland }
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