base rate fallacy


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Related to base rate fallacy: Representativeness heuristic

base rate fallacy

n
(Statistics) statistics the tendency, when making judgments of the probability with which an event will occur, to ignore the base rate and to concentrate on other information
References in periodicals archive ?
The base rate fallacy occurs when the conditional probability of some hypothesis--that is, probability of some event (A), given the occurrence of some other event (B), is assessed without sufficiently taking into account the base rate for that event.
Base Rate Fallacy is the tendency to ignore preexisting probabilities in calculating present or future probabilities.