George Otieno Orwa is currently Professor of Statistics with Jomo Kenyatta University of Agriculture and Technology, He is also the Dean School of Applied Sciences, Coordinator Mathematical Sciences, Pan African University and serves as the organizing Secretary to the Kenya National Statistical Society. He participates a lot in the teaching of undergraduate and postgraduate students in various areas of Mathematical Statistics and has co-authored a book for undergraduate Probability and Statistics: (Probability Distributions for a Single Random Variable (H. Humphreys, S.M Uppal, R.O. Otieno and G. O. Orwa- in press). His main areas of Research interest include Sample Surveys Theory and Statistical Inference Theory.