Results 31 to 40 of about 2,024,233 (364)

On weighted exponential-Gompertz distribution: properties and application

Journal of Taibah University for Science, 2019
In this paper, we introduce a new distribution generated by an integral transform of the probability density function of the weighted exponential distribution. This distribution is called the weighted exponential-Gompertz (WE-G). Its hazard rate function
Ahmed M. T. Abd El-Bar, I. E. Ragab
doaj   +1 more source

A New 3-Parameter Bounded Beta Distribution: Properties, Estimation, and Applications

Axioms, 2022
This study presents a new three-parameter beta distribution defined on the unit interval, which can have increasing, decreasing, left-skewed, right-skewed, approximately symmetric, bathtub, and upside-down bathtub shaped densities, and increasing, U, and
Faiza A. Althubyani, Ahmed M. T. Abd El-Bar, Mohamad A. Fawzy, Ahmed M. Gemeay   +3 more
doaj   +1 more source

L-moments and C-moments

Stochastic Environmental Research and Risk Assessment, 2000
It is well known that the computation of higher order statistics, like skewness and kurtosis, (which we call C-moments) is very dependent on sample size and is highly susceptible to the presence of outliers. To obviate these difficulties, Hosking (1990) has introduced related statistics called L-moments.
Ulrych, Tadeusz J., Velis, Danilo Rubén, Woodbury, Allan D., Sacchi, Mauricio D.   +3 more
openaire   +3 more sources

Topp–Leone Modified Weibull Model: Theory and Applications to Medical and Engineering Data

Applied Sciences, 2022
In this article, a four parameter lifetime model called the Topp–Leone modified Weibull distribution is proposed. The suggested distribution can be considered as an alternative to Kumaraswamy Weibull, generalized modified Weibull, extend odd Weibull ...
Salem A. Alyami, Ibrahim Elbatal, Naif Alotaibi, Ehab M. Almetwally, Hassan M. Okasha, Mohammed Elgarhy   +5 more
doaj   +1 more source

A New Generalization of the Fréchet Distribution: Properties and Application

Statistica, 2019
A new generalization of the Fréchet distribution is introduced and studied. Its structural properties including the quantile function, random number generation, moments, moment generating function and order statistics are investigated.
Jayakumar Kuttan Pillai, Girish Babu Moolath   +1 more
doaj   +1 more source

Spatial Scaling Patterns of Functional Diversity

Frontiers in Ecology and Evolution, 2021
Ecology, biogeography and conservation biology, among other disciplines, often rely on species identity, distribution and abundance to perceive and explain patterns in space and time.
Saeid Alirezazadeh, Saeid Alirezazadeh, Paulo A. V. Borges, Pedro Cardoso, Pedro Cardoso, Rosalina Gabriel, François Rigal, François Rigal, Luís Borda-de-Água, Luís Borda-de-Água   +9 more
doaj   +1 more source

Tangent Topp-Leone Family of Distributions

Scientific African, 2022
We introduce the tangent Topp-Leone family of distributions in this study and derive some of its statistical properties. Further, we develop five special distributions and a location-scale regression model based on the new proposed tangent Topp-Leone ...
Salifu Nanga, Suleman Nasiru, Jakperik Dioggban   +2 more
doaj  

Alpha power inverse Weibull distribution with reliability application

Journal of Taibah University for Science, 2019
In this paper, we use the method of the alpha power transformation to introduce a new generalized alpha power inverse Weibull (APIW) distribution. Its characterization and statistical properties are obtained, such as reliability, moments, entropy and ...
Abdulkareem M. Basheer
doaj   +1 more source

Moments of the Poisson distribution of order $k$ [PDF]

arXiv, 2023
The factorial moments of the standard Poisson distribution are well known and are simple, but the raw moments are considered to be more complicated (Touchard polynomials). The present note presents a recurrence relation and an explicit combinatorial sum for the raw moments of the Poisson distribution of order $k$.
arxiv  

MITIGATING THE INTERFERENCE IN DYNAMIC SPECTRA IN THE PRESENCE OF POWERFUL SIGNALS. Part 2. NARROWBAND INTERFERENCES OF CONDITIONALLY STATIONARY CHARACTER [PDF]

Radio Physics and Radio Astronomy
Subject and Purpose. A new method for detecting narrow band interferences is discussed, with the use of an example record of Jovian Io-C decametric radio storm as obtained with the UTR-2 array on April 10, 2020.
V. B. Ryabov, V. V. Zakharenko, V. Yu. Kharlanova   +2 more
doaj   +1 more source