[pwah-sohn; French pwa-sawn] /pwɑˈsoʊn; French pwaˈsɔ̃/
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 radiation and bacteriological problems.
(statistics) a distribution that represents the number of events occurring randomly in a fixed time at an average rate λ; symbol P0(λ). For large n and small p with np = λ it approximates to the binomial distribution Bi(n,p)
A probability distribution which arises when counting the number of occurrences of a rare event in a long series of trials. It is named after its discoverer, French mathematician and physicist Siméon Denis Poisson (1781-1840).
[pwah-tyey, pwah-tyey] /pwɑˈtyeɪ, ˈpwɑ tyeɪ/ noun 1. Sidney, born 1927, U.S. actor and director.
[pwa-tyey] /pwaˈtyeɪ/ noun 1. a city in and the capital of Vienne, in W France: Roman ruins; battles a.d. 507, 732, 1356. [vyen] /vyɛn/ noun 1. a city in SE France, on the Rhone River, S of Lyons: Roman ruins. 2. a department in W France. 2720 sq. mi. (7045 sq. km). Capital: Poitiers. /French […]
[pwa-too] /pwaˈtu/ noun 1. a region and former province in W France. 2. Gate of, a wide pass near Poitiers. /French pwatu/ noun 1. a former province of W central France, on the Atlantic. Chief town: Poitiers
/French pwatuʃarɑ̃t/ noun 1. a region of W central France, on the Bay of Biscay: mainly low-lying