Students in a science class are constructing a model for a data set. The residual plot for their quadratic regression model is given. Which of the following is the best conclusion?
A The quadratic model is appropriate because the residuals show a pattern.
B The quadratic model is appropriate because the residuals show no pattern.
C. The quadratic model is not appropriate because the residuals show a pattern.
D The quadratic model is not appropriate because the residuals show no pattern.
