That sense is called least-square fit and the process of finding that line is called least-square linear regression.Īctual formulas involved are somewhat complicated, since they are based Line where the sum of the squares of the differences to all data points
Mathematically speaking, the line that give the "best fit" is that
High school GPA and the freshmen GPA, and we would like to be able to Would like to know whether there is a linear relationship between the School GPA and their freshmen GPA in college the subsequent year. Let's use the same example that we have used before:Ī group of 11 students was selected at random and asked for their high Relationship, if any, and develop some formulas that will allow us to Related, but we want to determine the exact nature of that Time we again want to look at data from two variables that are possibly