# Chapter 8 - Section 8.5 - Counting and Introduction to Probability - Exercise Set: 22

$\frac{2}{3}$

#### Work Step by Step

There are 3 possible outcomes of a single spin: 1, 2, 3. The numbers that are not 3, 1 and 2, represents 2 of the 3 possible outcomes, so the probability is 2 out of 3.

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