1. Department of Mathematical Sciences, College of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
2. Department of Mathematics, College of Science, Northern Border University, Arar, Saudi Arabia
3. Basic and Applied Science Institute, Arab Academy for Science, Technology and Maritime Transport (AASTMT), Alexandria, Egypt
4. Department of Mathematics (Statistics Option) Programme, Pan African University, Institute for Basic Science, Technology and Innovation (PAUSTI), Nairobi 62000-00200, Kenya
5. College of Business Administration in Hotat Bani Tamim, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia