Regression analysis is: a statistical process which involves estimating a prediction equation that expresses an item of interest (commonly known as the x or dependent variable) in terms of other data fields (the y or independent variables). a non-statistical process which involves estimating a prediction equation that expresses an item of interest (commonly known as the y or dependent variable) in terms of other data fields (the x or independent variables). a statistical process which involves estimating a prediction equation that expresses an item of interest (commonly known as the y or dependent variable) in terms of other data fields (the x or independent variables). a non-statistical process which involves estimating a prediction equation that expresses an item of interest (commonly known as the x or dependent variable) in terms of other data fields (the y or independent variables)