A Residual Plot That Has No Pattern Is a Sign

Multiple Choice

A residual plot that has no pattern is a sign that…

A) the original data is straight and the regression line is not a good model.
B) the original data is straight and the regression line is a good model.
C) the original data is curved and the regression line is a good model.
D) the original data is curved and the regression line is not a good model.
E) the model is not a good one, because there is no pattern.