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Exponential and Hypoexponential Distributions: Some Characterizations

open access: yesMathematics, 2020
The (general) hypoexponential distribution is the distribution of a sum of independent exponential random variables. We consider the particular case when the involved exponential variables have distinct rate parameters.
George P. Yanev
doaj   +1 more source

Ristić-Balakrishnan extended exponential distribution

open access: yesActa Scientiarum: Technology, 2018
In this paper, we introduce and study a new generalization of the extended exponential distribution, called the Ristić-Balakrishnan extended exponential distribution.
Frank Gomes-Silva   +2 more
doaj   +1 more source

Record Ranges for Samples From Asymmetrical Laplace Distributions

open access: yesJournal of Statistical Theory and Applications (JSTA), 2018
The representations of record ranges via sums of independent identically distributed exponential random variables are obtained for asymmetrical Laplace distributions.
I.V. BELKOV   +2 more
doaj   +1 more source

An Exponential-Negative Binomial Distribution

open access: yesRevstat Statistical Journal, 2013
A new three-parameter distribution is proposed for modeling lifetime data. It is advocated as most reasonable among the many exponential mixture type distributions proposed in recent years.
Sadegh Rezaei , Saralees Nadarajah
doaj   +1 more source

An Exponential Distribution with a Jump. [PDF]

open access: yesThe Egyptian Statistical Journal, 1997
In this paper, we study an exponential distribution with a jump at one. The moments and moment generating function of this distribution will be derived. Also, we will estimate the parameters of this distribution.
Ahmad El-Qasem
doaj   +1 more source

Statistical Properties and Applications of the Exponentiated Chen-G Family of Distributions: Exponential Distribution as a Baseline Distribution

open access: yesAustrian Journal of Statistics, 2022
In this work, the Exponentiated Chen-G family of distributions is studied by generalizing the Chen-G family of distributions through the introduction of an additional shape parameter. The mixture properties of the derived family are studied.
Phillip Awodutire
doaj   +1 more source

Statistical Modeling using A New Hybrid Form of The Inverted Exponential Distribution with Different Estimation Methods

open access: yesInPrime, 2022
This paper introduces a new four-parameter distribution called the exponentiated Gompertz generated inverted exponential (EGGIE) distribution. Explicit expressions of the structural properties such as the ordinary and incomplete moments, probability ...
O. D. Adubisi, C. E. Adubisi
doaj   +1 more source

New Exponentiated Exponential- Rayleigh Distribution: Structure and Properties

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences
In this research, we will introduce a new distribution, which is called the new exponentiated exponential-Rayleigh distribution, which is built by adding the shape parameter to the cumulative function of the exponential-Rayleigh distribution resulting ...
Dorgham Ali Hamza   +2 more
doaj   +1 more source

Reconsideration of sample size and power calculation for overall survival in cancer clinical trials

open access: yesContemporary Clinical Trials Communications, 2018
When designing a cancer clinical trial, it is usual to assume an exponential distribution for a time-to-event outcome such as overall survival (OS). OS is often expressed as the sum of progression-free survival (PFS) and survival post-progression (SPP ...
Inkyung Jung   +3 more
doaj   +1 more source

Uniformly Shifted Exponential Distribution

open access: yesAxioms
The use of life distributions has increased over the past decade, receiving particular attention in recent years, both from a practical and theoretical point of view. Life distributions can be used in a number of applied fields, such as medicine, biology,
Abdulhamid. A. Alzaid, Najla Qarmalah
doaj   +1 more source

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