Bivariate generalization of the kummer-beta distribution

ABSTRACT: In this article, we study several properties such as marginal and conditional distributions, joint moments, and mixture representation of the bivariate generalization of the Kummer-Beta distribution. To show the behavior of the density function, we give some graphs of the density for diffe...

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Autores:
Bran Cardona, Paula Andrea
Orozco Castañeda, Johanna Marcela
Krishna Nagar, Daya
Tipo de recurso:
Article of investigation
Fecha de publicación:
2011
Institución:
Universidad de Antioquia
Repositorio:
Repositorio UdeA
Idioma:
eng
OAI Identifier:
oai:bibliotecadigital.udea.edu.co:10495/29346
Acceso en línea:
http://hdl.handle.net/10495/29346
https://revistas.unal.edu.co/index.php/estad/article/view/29965
Palabra clave:
Funciones hipergeométricas
Hypergeometric functions
Distribución hipergeométrica
Hypergeometric distribution
Distribución (teoría de probabilidades)
Distribution (probability theory)
Rights
openAccess
License
http://creativecommons.org/licenses/by/2.5/co/
Description
Summary:ABSTRACT: In this article, we study several properties such as marginal and conditional distributions, joint moments, and mixture representation of the bivariate generalization of the Kummer-Beta distribution. To show the behavior of the density function, we give some graphs of the density for different values of the parameters. Finally, we derive the exact and approximate distribution of the product of two random variables which are distributed jointly as bivariate Kummer-Beta. The exact distribution of the product is derived as an infinite series involving Gauss hypergeometric function, whereas the beta distribution has been used as an approximate distribution. Further, to show the closeness of the approximation, we have compared the exact distribution and the approximate distribution by using several graphs. An application of the results derived in this article is provided to visibility data from Colombia