(mathematics) The mathematical study of probability (the likelihood of occurrence of random events in order to predict the behavior of defined systems).

(statistics) A distribution of all possible values of a random variable together with an indication of their probabilities.

(US, law) The standard by which a police officer may make an arrest or conduct a personal or property search, based on the likelihood of a criminal act etc.

(mathematics) A measurable space having a unit measure

plural of probable error

(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.

plural of quasi-probability

plural of joint probability

(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.

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