Events and Meetings of Italian Statistical Society, Statistics and Demography: the Legacy of Corrado Gini

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The mean difference of dscrete distibution models
Fabio Manca, Angela Maria D'Uggento, Giovanni Girone

Last modified: 2015-09-05


The aim of the paper is to deal with the Gini mean difference as a measure of the variability of some discrete distribution models: Bernoulli distribution, binomial distribution, Poisson distribution, negative binomial distribution, geometric distribution, hypergeometric distribution, logarithmic distribution, distribution of Zipf. The provided expressions of the mean differences contribute to characterize the distributions; along with the other most common indices of variability, they allow us to better appreciate the shape aspects of the distribution models.

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