ABSTRACT
To obtain applicable and practical predictive qualitative relationships, it is necessary to model the rock properties and the drill process variables. Multiple regression analysis is widely used for modeling and analyzing the experimental results. Regression is the determination of the statistical relationship between two or more variables. It is the statistical method to deal with the formulation of mathematical model depicting the relationship among the variables which can be used for the purpose of prediction of values of dependent or response variables, given the values of predictor or independent variable(s), the analysis concerning the relationship is known as multiple correlation and equations describing such relationships are called as multiple regression equations. Physical properties of rocks can be predicted by multiple regression modeling, the statistical methodology used to relate variables (Bowerman and O’Connell 1990).
