Under what circumstance, unlikely as it might be, would the standard error of estimate be zero?
A) The proportionate reduction in error is zero.
B) The correlation coefficient is zero.
C) The correlation coefficient is either 1.00 or -1.00.
D) The proportionate reduction in error is 1.

Question

Quizplus · Accepted Answer

The standard error of estimate is defined as the standard deviation of the residuals (the differences between the observed values and the predicted values) in a regression model. The only circumstance under which the standard error of estimate would be zero is if the correlation coefficient is either 1.00 or -1.00. In these cases, the predicted values would perfectly match the observed values, and there would be no residuals or variation around the regression line.

Under What Circumstance, Unlikely as It Might Be, Would the Standard