On modelling overdispersion of counts

K. Poortema

Statistica Neerlandica, 1999, vol. 53, issue 1, 5-20

Abstract: For counts it often occurs that the observed variance exceeds the nominal variance of the claimed binomial, multinomial or Poisson distributions. We study how models can be extended to cope with this phenomenon: a survey of literature is given. We focus on modelling, not on estimation or testing statistical hypotheses. The attention is restricted to independent observations.

Date: 1999
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