1. Department of Mathematics and Statistics, College of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
2. Department of Statistics and Insurance, Faculty of Commerce, Zagazig University, Zagazig, Egypt
3. School of Science, Engineering, and Environment, Salford University, Great Manchester, UK
4. Department of Computer Science, College of Science, Diyala University, Baqubah, Diyala, Iraq
5. Department of Basic Sciences, Higher Institute of Administrative Sciences, Osim, Egypt