# Poisson Distribution

A discrete probability distribution $$P(\lambda)$$ having the PMF
$p_{\lambda}(k) = \frac{\lambda^k e^{-\lambda}}{k!}$
where the exclamation mark represents the factorial, that governs the probability that $$k$$ events that occur at a rate $$\lambda$$ and whose arrival is independent of previous arrival times will occur in a single unit of time.

### Gallimaufry

 AKCalc ECMA Endarkenment Turning Sixteen

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