A perfect association between variables can be seen on a scatterplot when________.
A) all dots lie an equal distance from the regression line.
B) all dots lie on the regression line.
C) the regression line forms a right angle at its intersection with the X axis.
D) the regression line is parallel to the X axis.

Question

Quizplus · Accepted Answer

When all dots lie on the regression line, it indicates a perfect association between variables. The regression line represents the relationship between the two variables and when all the data points fall on the line, it means that every change in one variable perfectly predicts a change in the other variable.

A Perfect Association Between Variables Can Be Seen on a Scatterplot