# Chapter 2 - Set Theory - 2.1 Basic Set Concepts - Exercise Set 2.1: 109

{Ireland, Switzerland, United Kingdom }

#### Work Step by Step

x is a country in which 8% $\leq$ percentage having used marijuana $\leq$ 12.3% From the graph Ireland = 8%, Switzerland = 8.5% United Kingdom = 9% So set = {Ireland, Switzerland, United Kingdom }

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