(law) A legal standard, applied in many jurisdictions for deciding the outcome of civil disputes, which requires that a dispute be decided in favor of the party whose claims are more likely to be true.

(statistics) The probability of an event obtained without the knowledge of occurrence of other events that bear on it.

(statistics) The probability of an event given the knowledge of occurrence of other events that bear on it; P( A | B ) as contrasted to P( A ), where A is the sought event and B is the sign or symptom event.

(physics) A concept introduced in order to apply quantum corrections to classical statistical mechanics

(mathematics) A mathematical measure on a probability space that can take on values between 0 and 1, with 0 corresponding to the empty set and 1 to the entire space.

plural of posterior probability

plural of prior probability

The probability distribution of a random variable whose sample space is the Cartesian product of the sample spaces of its (at least two) component random variables.

plural of probability space

(statistics) The half-range of an interval about a central point for the distribution, such that half of the values from the distribution will lie within the interval and half outside.