The clustering of viola tricolor was an application of a process with this name by Svedberg. Conway and Maxwell adapted the distribution with this name to model overdispertion and underdispersion. The distribution with this name has a single mode if its parameter lambda is not an integer but two modes if it is and for large lambda can be well appro
The clustering of viola tricolor was an application of a process with this name by Svedberg. Conway and Maxwell adapted the distribution with this name to model overdispertion and underdispersion. The distribution with this name has a single mode if its parameter lambda is not an integer but two modes if it is and for large lambda can be well approximated by a normal distribution with mean lambda and variance lambda.  For 10 points, what French statistician lends his name to a discrete probability distribution used to calculate the number of independent events occurring in a fixed interval at a constant rate?