Poisson distribution mean and variance
This section explores poisson distribution mean and variance. This article continues from the previous poisson article It may be a good idea to read through it before going through this article.
Poisson distribution mean and variance
Next we shall explore how to find the mean and variance of Poisson distribution. Here are some key points to note;
- If the random variable X ~ Po(λ) then it can be shown that;
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In the following example we shall use the tables of the Poisson cumulative distribution.
