Material and Methods
Regression analysis seeks to find regression models or mathematical equation that best describes the
relationship between two or more variables .Regression may be linear or non linear and simple or multiple.
The major purpose in each of such situation is to explore the dependence of one variable on the other, or
others. When there evidence that two variables are related, it may be of interest to describe the relationship
between them using regression analysis. For the focus of this paper, we discuss the simple and multiple
regressions briefly.