A single die is rolled one time. What is the probability of rolling a number greater than 5 or less than 3?

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Apr 18, 2017

The die is assumed to have six sides labeled #1, 2, 3, 4, 5, 6 #
The numbers greater than 5 are #6#.
The numbers less than 3 are #2, 1#.

So the numbers greater than 5 OR less than 3 are the union of the two sets or 6, and 2,1. The probability of rolling one of these numbers is #3/6=1/2# or #50%#.

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