Talk:Poisson distribution

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Waiting time to next event.[edit]

In the waiting time to the next event

This looks like it isn't normarmalized. since there should be a out in front. Am I wrong? Pdbailey 03:47, 11 Jan 2005 (UTC)

Yes; you're wrong. The normalizing constant should appear in the probability density function, but not in this expression, which is 1 minus the cumulative distribution function. Michael Hardy 03:50, 11 Jan 2005 (UTC)

Erlang Distribution[edit]

There's a refrence to erlang distribution, but the article does not mention the mutual dependence between Erlang Distribution and Poission Distribution. That is, the number of occurrences within a given interval follows a Poission distribution iff the time between occurrences follows an exponential distribution. (unsigned by user:Oobyduby)


Do we need the "Computer software for the Poisson distribution" section?[edit]

Do we need the "Computer software for the Poisson distribution" section? Realistically it is a very common distribution and effectively any generic statistical computing package will include this functionality. As it article stands there is little reason not to add MATLAB, SAS or even C (through some C external library akin to SciPy, like GSL) examples. Just something like: "Poisson distributed random variables can be readily generated in R, Excel, Mathematica, SAS, Python (SciPy), MATLAB, C/C++ (GSL), etc. ..." should be adequate. — Preceding unsigned comment added by Homo Ex Machina (talkcontribs) 00:23, 23 March 2017 (UTC)