Statistics
Regression Calculator Guide
Linear regression equation.
Best-fit line through data.
Equation
y=mx+b. Minimizes squared errors.
R-Squared
Proportion of variance explained. 0-1.
Assumptions
Linear, independent, normal residuals, equal variance.
Frequently Asked Questions
Linear regression?
Best-fit line y=mx+b. Predicts y from x.
R-squared?
Variance explained. 0.8=80% explained.
When?
Linear relationship between predictor and outcome.