Influential point: An observation that, if removed, would substantially change the regression line or correlation.
How to apply it: Points with extreme x-values are often influential; check leverage and whether the point is an outlier in context.
Course: AP Statistics · Unit: Exploring Two-Variable Data
Practice questions about Influential point on AimFive — get rubric-based feedback showing exactly which points you earned.
AP and Advanced Placement are trademarks of College Board. AimFive is not affiliated with or endorsed by College Board.