The Poisson distribution is one of the most important probability distributions, quantifying the probability of rare events occuring. It is another limit of the binomial distribution, but for low-probability events. This video was produced at the University of Washington, and we acknowledge funding support from the Boeing Company %%% CHAPTERS %%% 00:00 Intro 01:14 When Normal Approximation Fails 03:44 Deriving the Poisson Distribution 09:32 Applying Poisson: Lightbulb Failure 12:03 Outro