The Discrete Poisson-Garima Distribution
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چکیده
In this paper, a discrete Poisson-Garima distribution has been obtained by compounding Poisson distribution with Garima distribution introduced by Shanker [1]. The general expression for the th factorial moment has been derived and hence moments about origin and central moments have been obtained. The expression for coefficient of Variation, skewness, kurtosis and index of dispersion has been given. Maximum likelihood estimation and the method of moments have been discussed for estimating the parameter of the distribution. Two examples of real data set have been given to test the goodness of fit of the discrete PoissonGarima distribution and the fit has been compared with Poisson and PoissonLindley distributions.
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