Which is not an assumed property of the errors in a population regression model?
A)They are unobservable.
B)They are independent.
C)They have zero variance.
D)They are normally distributed.

Question

Quizplus · Accepted Answer

The assumption that errors have zero variance is not plausible because if they had zero variance, it would imply that all predicted values have no variability around the actual values. This assumption is not only unrealistic but also contradicts the very nature of regression models, where some deviation from the expected value is expected to be present due to random variation.

Which Is Not an Assumed Property of the Errors in a Population