Pois·son distribution (pwä-sô  )n. Statistics A probability distribution which arises when counting the number of occurrences of a rare event in a long series of trials. [After Siméon Denis Poisson (1781-1840), French mathematician.] |
Poisson distribution [ˈpwɑːsən]
n
(Mathematics & Measurements / Statistics) 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)
[named after Siméon Denis Poisson (1781-1840), French mathematician]
| Poisson distribution (pwä-sô) 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). |
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| Noun | 1. | Poisson distribution - a theoretical distribution that is a good approximation to the binomial distribution when the probability is small and the number of trials is large distribution, statistical distribution - (statistics) an arrangement of values of a variable showing their observed or theoretical frequency of occurrence statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters |
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