Generates values conforming to a Poisson distribution Pλ(k) =
(λk/k!)e-λ.
The Poisson distribution yields the probability of the occurence of k events
within a certain period of time, assuming that λ denotes the average
occurence of events during that period and privided that events are
independent of the time since the last event.
It turns out that λ is both the expected value and the variance of the
distribution.
Exceptions thrown
IllegalArgumentException if lambda not positive or not finite
Generates values conforming to a Poisson distribution Pλ(k) = (λk/k!)e-λ.
The Poisson distribution yields the probability of the occurence of k events within a certain period of time, assuming that λ denotes the average occurence of events during that period and privided that events are independent of the time since the last event.
It turns out that λ is both the expected value and the variance of the distribution.
IllegalArgumentExceptionif lambda not positive or not finitehttps://de.wikipedia.org/wiki/Poisson-Verteilung