The normal approximation to the multinomial with an increasing number of classes

Lionel Weiss

Naval Research Logistics Quarterly, 1976, vol. 23, issue 1, 139-149

Abstract: For a fixed number of classes and the number of trials increasing, the approach of the multinomial cumulative distribution function to a normal cumulative distribution function is familiar. In this paper we allow the number of classes to increase as the number of trials increases, and show that under certain circumstances the probabilities assigned to arbitrary regions by the multinomial distribution are all close to the probabilities assigned by the distribution of “rounded off” normal random variables. As the number of trials increases, the amount rounded off approaches zero. The result can be used to study the asymptotic distribution of functions of multinomial random variables.

Date: 1976
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Persistent link: https://EconPapers.repec.org/RePEc:wly:navlog:v:23:y:1976:i:1:p:139-149

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