If all the points in a scatter diagram lie on the least squares regression line,then the coefficient of correlation must be:
A)1.0
B)−1.0
C)either 1.0 or −1.0
D)0.0

Question

Quizplus · Accepted Answer

When all points in a scatter diagram lie on the least squares regression line, it indicates a perfect linear relationship. The coefficient of correlation can be either 1.0 (perfect positive linear relationship) or -1.0 (perfect negative linear relationship).

If All the Points in a Scatter Diagram Lie on the Least