If all the points of a scatter diagram lie on the least squares regression line, then the coefficient of determination for these variables based on these data
A) is 0.
B) is 1.
C) is either 1 or -1, depending upon whether the relationship is positive or negative.
D) could be any value between -1 and 1.

Question

Quizplus · Accepted Answer

If all the points of a scatter diagram lie on the least squares regression line, then there is a perfect linear relationship between the variables. In this case, the coefficient of determination (r-squared) will be equal to 1, indicating that 100% of the variability in one variable can be explained by the other variable.

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