1. Department of Statistics and Operation Research, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
2. Government Associate College, Khairpur Tamewali, Bahawalpur, Pakistan
3. College of Business Administration in Hotat bani Tamim, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
4. Department of Mathematics and Statistics University of Saskatchewan, Saskatoon, SK, Canada
5. Basic and Applied Science Institute, Arab Academy for Science, Technology and Maritime Transport (AASTMT), Alexandria, Egypt
6. Department of Mathematics, Faculty of Science, Helwan University, Cairo, Egypt
7. Department of Mathematics, Faculty of Science, Tanta University, Tanta 31527, Egypt