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Topic: poisson distribution vs binomial distribution
Replies: 4   Last Post: May 24, 2010 3:31 PM

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Posts: 107
Registered: 12/13/04
Re: poisson distribution vs binomial distribution
Posted: Feb 1, 2001 5:30 PM
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In article <>,
"Nicolas Dickreuter" <> wrote:
> Am I right in thinking that the poisson distribution is nothing more
than an
> approximation to the binomial (or hypergeometric distribution)? Or is
> a specific case where the poisson distribution is the only way to
solve a
> probability?
> Any help would be appreciated.
> --
> If you reply via email please remove the 'fake' from my mailaddress.
> regards
> Nicolas

Binomial: fixed number of trials n, each with positive probability p
of success.

Poisson: infinite number of trials, each with same but infinitely small
probability of success.

Poisson is the limit of binomial as n goes to infinity, p goes to zero,
and p*n remains constant.

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