addition rule

a maxim of probability theory stating that the likelihood of observing a set of distinct events is equal to the sum of the probabilities of observing the individual events. Also called addition law; or rule. Compare multiplication rule.

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Psychology term of the day

October 18th 2024

time out (TO)

Sorry, "time-out-to" is not in the Dictionary of Psychology. Please report to APA if you believe this is an error.