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Certain Family of Some Beta Distributions Arising from Distribution of Randomly Weighted Average
Rasool Roozegar
We give the exact distribution of the average of n independent beta random variables weighted by the selected cuts of (0, 1) by the order statistics of a random sample of size n-1…
On Bivariate Generalized Linear Failure Rate-Power Series Class of Distributions
Rasool Roozegar, Ali Akbar Jafari
Recently it has been observed that the bivariate generalized linear failure rate distribution can be used quite effectively to analyze lifetime data in two dimensions. This paper i…
On Bivariate Generalized Exponential-Power Series Class of Distributions
Ali Akbar Jafari, Rasool Roozegar
In this paper, we introduce a new class of bivariate distributions by compounding the bivariate generalized exponential and power-series distributions. This new class contains some…
On Bivariate Exponentiated Extended Weibull Family of Distributions
Rasool Roozegar, Ali Akbar Jafari
In this paper, we introduce a new class of bivariate distributions called the bivariate exponentiated extended Weibull distributions. The model introduced here is of Marshall-Olkin…
The McDonald Gompertz Distribution: Properties and Applications
Rasool Roozegar, Saeid Tahmasebi, Ali Akbar Jafari
This paper introduces a five-parameter lifetime model with increasing, decreasing, upside -down bathtub and bathtub shaped failure rate called as the McDonald Gompertz (McG) distri…