A(n) ________ is a point that strongly affects the graph of the regression line.
A) least squares point
B) residual point
C) influential point
D) marginal point

Question

Quizplus · Accepted Answer

An influential point is a point that strongly affects the regression line by either having a large residual or by determining the slope of the line. This means that if an influential point is removed from the dataset, the regression line may shift significantly. A least squares point is not a statistically defined term, a residual point only refers to a point with a large difference between its observed and predicted value, and a marginal point is not a commonly used term in regression analysis.

A(n) ________ Is a Point That Strongly Affects the Graph