1. Department of Basic Sciences, School of Basic and Biomedical Science, University of Health and Allied Sciences, Ho, Ghana
2. Department of Statistics, Faculty of Physical Sciences, University for Development Studies, Tamale, Ghana
3. Department of Statistics and Actuarial Science, School of Mathematical Sciences, C. K. Tedam University of Technology and Applied Sciences, Navrongo, Ghana
4. Department of Statistical Science, Tamale Technical University, Tamale, Ghana
5. Student Affairs Unit, C. K. Tedam University of Technology and Applied Sciences, Navrongo, Ghana