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1. (n.) Poisson distribution
a probability distribution whose mean and variance are identical.
Etymology: (1920–25; after S. D. Poisson (1781–1840), French mathematician and physicist)
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| Definition of 'poisson distribution' |
Princeton's WordNet |
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1. (noun) 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
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| Definition of 'poisson distribution' |
U.S. National Library of Medicine |
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1. poisson distribution
A distribution function used to describe the occurrence of rare events or to describe the sampling distribution of isolated counts in a continuum of time or space.
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