Which statement best describes the concept of leverage in regression analysis?

Which statement best describes the concept of leverage in regression analysis?

• A. Leverage measures how far an observation's predictor values are from the mean; high leverage points can influence the regression results.
• B. Leverage measures the size of the residuals.
• C. Leverage is the same as the mean of the predictors.
• D. Leverage only depends on sample size.

Answer: (A)