Appendix A.40

Regression Calculator

Perform least-squares regression analysis with correlation, predictions, and diagnostics.

Regression Calculator

Least-Squares Regression Line
Slope: 5.0476Intercept: 48.5357R²: 99.13%
Hours StudiedExam Score

Make a Prediction

When x =→

Slope Interpretation

For every 1-unit increase in Hours Studied, Exam Score increases by about 5.05 units on average.

R² Interpretation

99.1% of the variation in Exam Score can be explained by the linear relationship with Hours Studied.