If the probability of an event happening is 1/7, what is the probability or likelihood that it will not happen?

Flashcard 12 - Upper Level: Quantitative Reasoning Flashcard Set for the ISEE

6/7

The Probability Rule of Subtraction states that:

The probability that an event will not occur = 1 – the probability that the event will occur.

\[1 - \frac{1}{7} = \frac{6}{7}\]

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