Results 21 to 30 of about 15,506,173 (331)

A Flexible Bathtub-Shaped Failure Time Model: Properties and Associated Inference

open access: yesStatistica, 2021
In this study, we introduce an extended version of the modified Weibull distribution with an additional shape parameter, in order to provide more flexibility to its density and the hazard rate function. The distribution is capable of modeling the bathtub-
Neha Choudhary   +2 more
doaj   +1 more source

Analysis on detection results of occupational hazards in 18 coal mines in southwest Guizhou

open access: yesMeikuang Anquan, 2021
In order to analyze the main occupational hazard factors and determine the key positions of occupational hazard factors in coal mines in southwest Guizhou Province, the test results of occupational hazard factors in 18 coal mines in southwest Guizhou ...
JIANG Xingfa, CHEN Xianyong
doaj   +1 more source

Multivariate hazard rate orders

open access: yesJournal of Multivariate Analysis, 2003
A weak and a strong notion of multivariate hazard rate orders are introduced and studied. Relationships of the new orders to other common stochastic orders are described. Useful preservation properties of these orders are proven and a sample of examples which illustrate the theory is given.
Hu, Taizhong   +2 more
openaire   +1 more source

Discrete Exponentiated Generalized Family of Distributions

open access: yesComputational Journal of Mathematical and Statistical Sciences, 2023
In this paper, exponentiated-G family of distributions is constructed as a new family of discrete distribution, using the general approach of discretization of a continuous distribution. Some statistical properties including quantiles, mean residual life,
Abeer E. Abd EL-Hady   +2 more
doaj   +1 more source

Some New Facts about the Unit-Rayleigh Distribution with Applications

open access: yesMathematics, 2020
The unit-Rayleigh distribution is a one-parameter distribution with support on the unit interval. It is defined as the so-called unit-Weibull distribution with a shape parameter equal to two.
Rashad A. R. Bantan   +7 more
doaj   +1 more source

Stochastic Comparisons of Residual Entropy of Order Statistics and Some Characterization Results [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2014
In this paper, we have presented some results for the residual and past entropies of order statistics. Results on the stochastic comparisons based on residual entropy of order statistics are presented. Characterization results for these dynamic entropies
Ramesh C. Gupta   +2 more
doaj   +1 more source

Stochastic Comparisons of Weighted Distributions and Their Mixtures

open access: yesEntropy, 2020
In this paper, various stochastic ordering properties of a parametric family of weighted distributions and the associated mixture model are developed. The effect of stochastic variation of the output random variable with respect to the parameter and/or ...
Abdulhakim A. Albabtain   +3 more
doaj   +1 more source

DEPENDENCE, DISPERSIVENESS, AND MULTIVARIATE HAZARD RATE ORDERING

open access: yesProbability in the Engineering and Informational Sciences, 2005
To compare two multivariate random vectors of the same dimension, we define a new stochastic order called upper orthant dispersive ordering and study its properties. We study its relationship with positive dependence and multivariate hazard rate ordering as defined by Hu, Khaledi, and Shaked (Journal of Multivariate Analysis, 2002).
Khaledi, Baha-Eldin, Kochar, Subhash C.
openaire   +4 more sources

Properties of N-Laplace Transform Ratio Order and L(N)-Class of Life Distributions

open access: yesRevstat Statistical Journal, 2016
One notion of stochastic comparisons of non-negative random variables based on ratios of nth derivative of Laplace transforms (n-Laplace transform order or shortly ≤n-Lt-r order) is introduced by Mulero et al. (2010).
Jalil Jarrahiferiz   +2 more
doaj   +1 more source

Bayesian Estimation Based on Sequential Order Statistics for Heterogeneous Baseline Gompertz Distributions

open access: yesMathematics, 2021
A composite dynamic system (CDS) is composed of multiple components. Each component failure can equally induce higher loading on the surviving components and, hence, enhances the hazard rate of each surviving component.
Tzong-Ru Tsai, Hua Xin, Chiun-How Kao
doaj   +1 more source

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