About the Authors

D. Ntirampeba

Roles Conceptualization, Data curation, Formal analysis, Methodology, Visualization, Writing – original draft

dntirampeba@nust.na

Affiliation Department of Mathematics and Statistics, Polytechnic of Namibia, Windhoek, Namibia

I. Neema

Roles Conceptualization, Methodology, Supervision, Writing – review & editing

Affiliation Namibia Statistics Agency (NSA), Windhoek, Namibia

L. Kazembe

Roles Conceptualization, Methodology, Supervision, Writing – review & editing

Affiliation Department of Statistics and Population Studies, University of Namibia, Pionerspark, Windhoek, Namibia

Competing Interests

The authors have declared that no competing interests exist.