Authors
I. J. David
Department of Mathematics and Statistics, Federal University Wukari, Nigeria
O. E. Asiribo
Department of Statistics, Federal University of Agriculture, Abeokuta, Nigeria
H. G. Dikko
Department of Statistics, Ahmadu Bello University, Zaria, Nigeria
P. O. Ikwuoche
Department of Mathematics and Statistics, Federal University Wukari, Nigeria