# Probability

**Definition**

*noun, plural: probabilities*

(1) A measure of the likelihood of a statement or a theoretical expectation is correct

(2) The likelihood of an event to occur

**Supplement**

Probability is used to measure the chances or likelihood of an event to occur, a hypothesis being correct, or a scientific prediction being true. In biology, it is used in predicting the outcome of a genetic cross or of a random experiment.

*Related term(s):*

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