On modelling overdispersion of counts

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    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.
    Original languageUndefined
    Pages (from-to)5-20
    Number of pages16
    JournalStatistica Neerlandica
    Issue number53
    Publication statusPublished - 1999


    • extra-Poisson variation
    • extra-multinomial variation
    • METIS-140551
    • Models
    • Extra-binomial variation
    • IR-58501

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