[1] Quaid i Azam Univ, Dept Stat, Islamabad, Pakistan
[2] Nanjing Univ Informat Sci & Technol, Sch Math & Stat, Nanjing, Peoples R China
[3] VSB Tech Univ Ostrava, IT4 Innovat, IT4Innovations, Ostrava, Czech Republic
[4] Univ Fed Pernambuco, Dept Stat, Recife, Brazil
[5] Hacettepe Univ, Dept Stat, Ankara, Turkiye