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Words related to probability

prob·a·bil·i·ty
P p

  • conditional probability

    the probability of one event, A, occurring given that another, B, is already known to have occurred: written P(A|B) and equal to P(A and B)|P(B)

  • bayes' theorem

    the fundamental result which expresses the conditional probability P(E/A) of an event E given an event A as P(A/E).P(E)/P(A); more generally, where En is one of a set of values Ei which partition the sample space, P(En/A) = P(A/En)P(En)/Σ P(A/Ei)P(Ei). This enables prior estimates of probability to be continually revised in the light of observations

  • mathematical expectation

    Mathematics. the product of the probability of the occurrence of an event and the value associated with the occurrence of a given event.

  • probability density function

    a function of a continuous variable whose integral over a region gives the probability that a random variable falls within the region.

  • probability theory

    the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Compare probability (def 4).

  • binomial distribution

    a statistical distribution giving the probability of obtaining a specified number of successes in a specified number of independent trials of an experiment with a constant probability of success in each. Symbol: Bi (n, p), where n is the number of trials and p the probability of success in each
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