1. Department of Mathematics and Statistics, University of Energy and Natural Resources, Sunyani 233, Ghana
2. Department of Statistical Service, Ghana Statistical Service, Bono Region, Sunyani 233, Ghana
3. Department of Mathematics and ICT, Gambaga College of Education, Sunyani 233, Ghana
4. Human Resources Division, University of Energy and Natural Resources, Sunyani 233, Ghana
5. Department of Biological Science, University of Energy and Natural Resources, Sunyani 233, Ghana.