Orderings of extremes among dependent extended Weibull random variables

Abstract In this work, we consider two sets of dependent variables \X₁, , X₍\ and \Y₁, , Y₍\, where X₈ EW (₈, ₈, k₈) and Y₈ EW (₈, ₈, l₈), for i=1, , n, which are coupled by Archimedean copulas having different generators. We then establish different inequalities between two extremes, namely, X₁: ₍ and Y₁: ₍ and X₍: ₍ and Y₍: ₍, in terms of the usual stochastic, star, Lorenz, hazard rate, reversed hazard rate and dispersive orders. Several examples and counterexamples are presented for illustrating all the results established here. Some of the results here extend the existing results of 5 (Barmalzan, G. , Ayat, S. M. , Balakrishnan, N. , & Roozegar, R. (2020). Stochastic comparisons of series and parallel systems with dependent heterogeneous extended exponential components under Archimedean copula. Journal of Computational and Applied Mathematics 380: Article No. 112965).