In a regression problem, if all the values of the independent variable are equal, then the coefficient of determination must be:
A) 1.0.
B) 0.5.
C) 0.0.
D) -1.0.

Question

Quizplus · Accepted Answer

If all the values of the independent variable are equal, there is no variation to explain, so the model cannot explain any variance in the dependent variable, resulting in a coefficient of determination (R²) of 0.0.

In a Regression Problem, If All the Values of the Independent