1. Fundamental and Applied Sciences Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
2. Department of Statistics, Aliko Dangote University of Science and Technology, Wudil 713281, Nigeria
3. Department of Information System, Universitas Islam Indragiri, Tembilahan 29281, Indonesia
4. Department of Statistics, Ahmadu Bello University, Zaria 810107, Nigeria
5. Faculty of Public Health, Airlangga University, Surabaya 60115, Indonesia
6. Management Science Research Group, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus 21030, Malaysia