The Poisson distribution

The Poisson DistributionSign up

understand the conditions under which a random variable can be modelled by Po(λ): events occurring independently at a constant average rate λ in a fixed interval · be able to calculate Poisson probabilities, use E(X) = Var(X) = λ, and use the Poisson distribution as an approximation to the binomial when n is large and p is small

Normal Approximation to the Poisson DistributionSign up

use the normal distribution, with continuity correction, as an approximation to the Poisson distribution where appropriate (m large; m >= 15 approximately)