In predicting Y from X, the regression line is laid down so that the squared discrepancies between points and the line are minimized
A) in the X dimension
B) in the Y dimension
C) in a direction perpendicular to the line
D) in all of the above dimensions

Question

Quizplus · Accepted Answer

The regression line minimizes the squared discrepancies (errors) in the Y dimension, which is the vertical distance between the observed data points and the predicted values on the line.

In Predicting Y from X, the Regression Line Is Laid