Regression

Practice problems for Regression

• Multiple Regression: Interpreting a Partial Effect
• Multicollinearity Effects in Regression
• Regression Diagnostics: Test for Heteroskedasticity
• Effect of Duplicating Data in Linear Regression
• R-Squared Symmetry: Regressing Y on X vs X on Y
• Valid Range of Common Correlation for Three Random Variables
• Upper Bound on Third Correlation Given Two Others
• Valid Range of Equal Pairwise Correlations for N Variables