Noun
Poisson (plural Poissons)
(mathematics) The Poisson distribution.
One man's fish is another man's poisson. Mark Gatiss
Arago later noted that the diffraction bright spot (which later became known as both the Arago spot and the Poisson spot) had already been observed by Joseph-Nicolas Delisle and Giacomo F. Maraldi citation a century earlier. Source: Internet
For example, one talks about "a Poisson distribution with mean value λ". Source: Internet
For occurrences of “contagious” discrete events, like tornado outbreaks, the Polya distributions can be used to give more accurate models than the Poisson distribution by allowing the mean and variance to be different, unlike the Poisson. Source: Internet
Fresnel's theory could not be true, Poisson declared, surely this result was absurd. Source: Internet
Hence a Poisson distribution is not an appropriate model. Source: Internet