Poisson distribution
noun Etymology: Siméon D. Poisson died 1840 French mathematician Date: 1922 a probability density function that is often used as a mathematical model of the number of outcomes obtained in a suitable interval of time and space, that has its mean equal to its variance, that is used as an approximation to the binomial distribution, and that has the form f(x) = eμx/x! where μ is the mean and x takes on nonnegative integral values

New Collegiate Dictionary. 2001.

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  • Poisson distribution — [pwä sōn′, pwäsōn′] n. [after S. D. Poisson (1781 1840), Fr mathematician] Statistics a frequency distribution that may be regarded as an approximation of the binomial distribution when the number of events becomes large and the probability of… …   English World dictionary

  • Poisson distribution — /pwah sohn /; Fr. /pwann sawonn /, Statistics. a limiting form of the binomial probability distribution for small values of the probability of success and for large numbers of trials: particularly useful in industrial quality control work and in… …   Universalium

  • Poisson Distribution — A statistical distribution showing the frequency probability of specific events when the average probability of a single occurrence is known. The Poisson distribution is a discrete function. For example, if the average number of people that rent… …   Investment dictionary

  • Poisson distribution — see frequency distribution S. D. Poisson (1781 1840), French mathematician * * * the probability distribution that describes counts of events randomly distributed in time or space, such as radioactive decay or blood cell counts. The probability… …   Medical dictionary

  • Poisson distribution — * cite journal author=Joachim H. Ahrens, Ulrich Dieter title=Computer Generation of Poisson Deviates journal=ACM Transactions on Mathematical Software year=1982 volume=8 issue=2 pages=163 179 doi=10.1145/355993.355997* cite journal author=Ronald… …   Wikipedia

  • Poisson distribution — Puasono skirstinys statusas T sritis Standartizacija ir metrologija apibrėžtis Retų įvykių skirstinys. atitikmenys: angl. Poisson distribution vok. Poissonsche Verteilung, f; Poisson Verteilung, f rus. распределение Пуассона, n pranc.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • Poisson distribution — Puasono skirstinys statusas T sritis fizika atitikmenys: angl. Poisson distribution vok. Poissonsche Verteilung, f; Poisson Verteilung, f rus. распределение Пуассона, n pranc. distribution de Poisson, f …   Fizikos terminų žodynas

  • Poisson distribution — [ pwʌsɒPoisson distribution] noun Statistics a discrete frequency distribution which gives the probability of a number of independent events occurring in a fixed time. Origin named after the French mathematical physicist Siméon Denis Poisson… …   English new terms dictionary

  • Poisson distribution — distribution probability that represents the happening of unusual events in a large number of trials …   English contemporary dictionary

  • Poisson distribution — Pois•son′ distribu tion [[t]pwɑˈsoʊn, ˈsɔ̃[/t]] n. sta a probability distribution whose mean and variance are identical • Etymology: 1920–25; after S. D. Poisson (1781–1840), French mathematician and physicist …   From formal English to slang

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