WSEAS Transactions on Mathematics
Print ISSN: 1109-2769, E-ISSN: 2224-2880
Volume 20, 2021
Conditionally Specified Bivariate Kummer-Gamma Distribution
Authors: , ,
Abstract: The Kummer-gamma distribution is an extension of gamma distribution and for certain values of parameters
slides to a bimodal distribution. In this article, we introduce a bivariate distribution with Kummer-gamma conditionals
and call it the conditionally specified bivariate Kummer-gamma distribution/bivariate Kummer-gamma conditionals distribution. Various representations are derived for its product moments, marginal densities, marginal moments, conditional
densities, and conditional moments. We also discuss several important properties including, entropies, distributions of sum,
and quotient. Most of these representations involve special functions such as the Gauss and the confluent hypergeometric
functions. The bivariate Kummer-gamma conditionals distribution studied in this article may serve as an alternative to
many existing bivariate models with support on (0, ∞) × (0, ∞).
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Keywords: Bivariate distribution, confluent hypergeometric function, gamma distribution, gamma function, Gauss
hypergeometric function, Kummer-gamma distribution
Pages: 196-206
DOI: 10.37394/23206.2021.20.21