Results 41 to 50 of about 4,677,840 (301)

The bivariate noncentral chi-square distribution – A compound distribution approach

open access: yes, 2011
This paper proposes the bivariate noncentral chi-square (BNC) distribution by compounding the Poisson probabilities with the bivariate central chi-square distribution.
Rossita M. Yunus   +3 more
core   +1 more source

A Bivariate $t$ Distribution

open access: yesThe Annals of Mathematical Statistics, 1967
In this note we consider the joint distribution of Student variates $(t_1, t_2)$, where $t_1$ corresponds to the $x$-observations and $t_2$ to $y$-observations from a bivariate normal distribution. No applications are suggested as Hotelling's $T^2$ is more appropriate whenever estimation of covariance matrix is necessary.
openaire   +2 more sources

Bivariate Beta and Kumaraswamy Models Developed Using the Arnold-Ng Bivariate Beta Distribution

open access: yesRevstat Statistical Journal, 2017
In this paper we explore some mechanisms for constructing bivariate and multivariate beta and Kumaraswamy distributions. Specifically, we focus our attention on the Arnold-Ng (2011) eight parameter bivariate beta model.
Barry Arnold , Indranil Ghosh
doaj   +1 more source

The Bivariate Lack-of-Memory Distributions [PDF]

open access: yesSankhya A, 2017
We treat all the bivariate lack-of-memory (BLM) distributions in a unified approach and develop some new general properties of the BLM distributions, including joint moment generating function, product moments and dependence structure. Necessary and sufficient conditions for the survival functions of BLM distributions to be totally positive of order ...
Lin, Gwo Dong   +2 more
openaire   +3 more sources

The Distribution of Sum, Product and Ratio for the Absolutely Continuous Bivariate Generalized Exponential Random Variables [PDF]

open access: yesThe Egyptian Statistical Journal, 2017
Block and  Basu  bivariate  exponential  distribution is  a  standout  amongst the  most  absolutely continuous  bivariate   technique . This idea can  be  extended to the  generalized  exponential   technique  also.
Hiba Z. Muhammed
doaj   +1 more source

On a Bivariate XGamma Distribution Derived from Copula

open access: yesStatistica, 2022
In this paper, a new bivariate XGamma (BXG) distribution is presented using Farlie-Gumbel-Morgenstern (FGM) copula. We derive the expressions for conditional distribution, regression function and product moments for the BXG distribution.
Mohammed Abulebda   +3 more
doaj   +1 more source

The Gut–Heart Axis in Systemic Sclerosis: Evidence From a Large Prospective Early Disease Cohort

open access: yesArthritis Care &Research, EarlyView.
Objective Cardiac involvement significantly impacts prognosis in systemic sclerosis (SSc), highlighting the need for early risk stratification. Gastrointestinal (GI) symptoms are common and often manifest early. Emerging data suggest a link between GI and cardiac manifestations, possibly through shared mechanisms like dysautonomia.
Francesca R. Di Ciommo   +9 more
wiley   +1 more source

Physics‐Constrained Constitutive Learning of Rate‐Limiting Timescales for Efficient Hydrogen‐Based Direct Reduction for Green Steel Making

open access: yesAdvanced Science, EarlyView.
A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Anurag Bajpai   +3 more
wiley   +1 more source

A Generalization of the Bivariate Gamma Distribution Based on Generalized Hypergeometric Functions

open access: yesMathematics, 2022
In this paper, we provide a new bivariate distribution obtained from a Kibble-type bivariate gamma distribution. The stochastic representation was obtained by the sum of a Kibble-type bivariate random vector and a bivariate random vector builded by two ...
Christian Caamaño-Carrillo   +1 more
doaj   +1 more source

The Mixed Bivariate Hofmann Distribution [PDF]

open access: yesASTIN Bulletin, 2001
AbstractIn this paper we study a class of Mixed Bivariate Poisson Distributions by extending the Hofmann Distribution from the univariate case to the bivariate case.We show how to evaluate the bivariate aggregate claims distribution and we fit some insurance portfolios given in the literature.This study typically extends the use of the Bivariate ...
Walhin, J. F., Paris, J.
openaire   +2 more sources

Home - About - Disclaimer - Privacy