Definition of prior probability in English:

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prior probability

noun

Statistics
A probability as assessed before making reference to certain relevant observations, especially subjectively or on the assumption that all possible outcomes be given the same probability.
Example sentences
  • The probability is either a prior probability or a conditional probability.
  • The resultant posterior probability then becomes a prior probability for the second drawing, the result of which is used to calculate a further posterior probability.
  • Her lawyers demonstrated that the test did not take proper account of the prior probability and thus made a tacit initial assumption of guilt.

For editors and proofreaders

Line breaks: prior prob|abil¦ity

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