1. LaPS Laboratory, Badji Mokhtar-Annaba University, Annaba, Algeria
2. Department of Mathematics, Faculty of Science, Tanta University, Tanta, Egypt
3. Department of Statistics, Faculty of Sciences, Selçuk University, Konya, Turkey
4. Department of Statistics and Operations Research, College of Science, King Saud University, P.O. Box 2455, Riyadh, Saudi Arabia
5. School of Computing, University of Eastern Finland, Kuopio, Finland
6. Faculty of Science and Humanities, School of Postgraduate Studies and Research (SPGSR), Amoud University, Borama, Somalia
7. Department of Mathematics, Faculty of Science, Helwan University, Cairo, Egypt