#### Answer

5/7

#### Work Step by Step

The probability of an event not happening is equal to one minus the probability of it happening. Thus, we find:
$$1-\frac{2}{7}=\frac{5}{7}$$

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Published by
Cengage Learning

ISBN 10:
9781337271172

ISBN 13:
978-1-33727-117-2

5/7

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