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A Size-Biased Poisson-Amarendra Distribution and Its Applications

机译:大小偏重的Poisson-Amarendra分布及其应用

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In this paper, a size-biased Poisson-Amarendra distribution (SBPAD) has been proposed by size-biasing the Poisson-Amarendra distribution (PAD) of Shanker (2016 b), a Poisson mixture of Amarendra distribution introduced by Shanker (2016 a). The first four moments (about origin) and the central moments (about mean) have been obtained and expressions for coefficient of variation (C.V), skewness, kurtosis and index of dispersion have been given. The estimation of its parameter has been discussed using maximum likelihood estimation and method of moments. Three examples of real data-sets have been presented to test the goodness of fit of SBPAD over size-biased Poisson distribution (SBPD), size-biased Poisson-Lindley distribution (SBPLD) and size-biased Poisson-Sujatha distribution (SBPSD).
机译:在本文中,通过对Shanker(2016 b)的Poisson-Amarendra分布(PAD)进行尺寸偏置,提出了尺寸偏置的Poisson-Amarendra分布(SBPAD),这是Shanker(2016 a)引入的Amarendra分布的Poisson混合物。 。获得了前四个矩(大约原点)和中心矩(大约平均值),并给出了变化系数(C.V),偏度,峰度和色散指数的表达式。已经使用最大似然估计和矩量方法讨论了其参数的估计。提出了三个真实数据集示例,以测试SBPAD在大小偏向的Poisson分布(SBPD),大小偏向的Poisson-Lindley分布(SBPLD)和大小偏向的Poisson-Sujatha分布(SBPSD)上的拟合优度。

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