An approximation for negative binomial sums involving a minimum of arithmetic is presented. Because of the relationship between negative binomial sums and regular binomial sums the approximation can ...

When data suggest the presence of "non-Poisson" variation, the analyses are often performed using a negative binomial model. This paper presents a methodology for analyzing cross-tabulated data under ...

In generalized linear models, the response is assumed to possess a probability distribution of the exponential form. That is, the probability density of the response Y for continuous response ...