It is important to review residual plots to identify any signs of _____ and correlated observations in cross-sectional and time-series studies.
A) variable studies
B) residual plot crosses
C) changing variability
D) standard error

Question

Quizplus · Accepted Answer

Changing variability in residual plots indicates that the variance of errors is not constant, which is an important assumption in many statistical models. Reviewing residual plots helps identify this issue, as well as correlated observations, which can affect the validity of the model.

It Is Important to Review Residual Plots to Identify Any