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The Poisson Distribution
is a discrete distribution which takes on the values X = 0, 1, 2, 3, ... . It
is often used as a model for the number of events (such as the number of telephone
calls at a business or the number of accidents at an intersection) in a specific
time period. It is also useful in ecological studies, e.g., to model the number
of prairie dogs found in a square mile of prairie.
The Poisson distribution
is determined by one parameter, lambda.
The distribution function
for the Poisson Distribution is:
f(x) = exp(-1*lambda)
lambda^x / x!
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The Poisson Distribution
