You are working with the text-only light edition of "H.Lohninger: Teach/Me Data Analysis, Springer-Verlag, Berlin-New York-Tokyo, 1999. ISBN 3-540-14743-8". Click here for further information.
| You are working with the text-only light edition of "H.Lohninger: Teach/Me Data Analysis, Springer-Verlag, Berlin-New York-Tokyo, 1999. ISBN 3-540-14743-8". Click here for further information.
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Table of Contents  Univariate Data Distributions Most common distributons Poisson Distribution |
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| See also: binomial distribution, relationship between distributions |   |
| Definition | 
Similar to binomial distribution, but used if the probability that the observed event occurs is very small, in contrast to the population, that is a very large number. |
| Graphical View |
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| Applications | The Poisson distribution is the distribution of rare events. A typical application is the probability that a certain number of accidents will occur in a given interval, or the probability of radioactive decay. The number of atoms to decompose is relatively small compared to the number of all atoms in the material. |
| First Moment | m = l |
| Second Moment | s = l |
Last Update: 2005-Jul-16