Abstract

The randm sum distribution plays an important key in statistical science as well as with insurance program, biotechnology and applied medical science. Saddlepoint methods are considered to be random sum variables with dependent elements supposing presence of the Moment Generation Function (MGF). Saddlepoint methods are influential instruments for getting precise terms for distribution functions in closed form. However, the paper also, discusses the Saddlepoint methods to the Cumulative Distribution Function (CDF) for Poisson-Binomial model in discrete form.

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