See also least squares. A statistical method for determining the type of relationship that exists among two or more variables and for using that relationship to make estimates or predictions. In order to have a perfect positive correlation, all points must lie on a straight line. As x increases, y stays the same. Correlations are reported to two decimal places.
All prior calculations require carrying to three decimal places.
Negative correlations mean that there is an inverse relationship, i.e. as one goes up, the other one goes down. The constant will be different for both formulas and so will the slope value. The slope and the constant are determined by empirical data. Add these overlaps to better predict success in graduate school.