Poisson distribution: A discrete probability distribution that describes the number of events occuring within a fixed interval of time or space given these events occur with a constant mean rate λ and independently of the time since the last event.
λ
Create a Poisson distribution.
The mean number of events in a given interval of time or space.
The mean of the distribution.
The standard deviation of the distribution.
The variance of the distribution.
Get the probability of exactly x successes in a given interval of time or space.
x
The number of successes. (x must be an integer and x≥0)
x≥0
Return P(X=x).
P(X=x)
Poisson distribution: A discrete probability distribution that describes the number of events occuring within a fixed interval of time or space given these events occur with a constant mean rate
λand independently of the time since the last event.