prior probability

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prior probability

n
(Statistics) statistics the probability assigned to a parameter or to an event in advance of any empirical evidence, often subjectively or on the assumption of the principle of indifference. Compare posterior probability
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References in periodicals archive ?
I expect many scientific critics of parapsychology would attach an astronomically low a priori probability to psi simply on the grounds of its incompatibility with these theories.
What is unique about a priori probability for Knight, then, is the fact that it is confined to situations where there is a defined classification of instances.
Each is composed of three factors: a priori probability of actual state, conditional probability of correct or incorrect decision/response, and benefit or cost of correct or incorrect decision/response.