a-residual-plot-for-a-dataset-shows-residuals-forming-a-wave-like-pattern-what-i

Question

A residual plot for a dataset shows residuals forming a wave-like pattern. What is the most appropriate conclusion?

Accepted Answer

A linear model is inadequate; consider a nonlinear model.

Answer

The data is homoscedastic.

Answer

The residuals are random.

Answer

The linear model is a good fit.