Question

question 6 of 10 which statement about residual plots is not true? a. the x - axis appears in the middle of the graph. b. if there is an obvious pattern, the model is probably reasonable. c. the sum of the residuals is 0. d. the vertical axis shows residuals.

Explanation:

In a residual plot, the x - axis represents the independent variable values from the data set, not necessarily in the middle of the graph. Also, if there is an obvious pattern in a residual plot, it indicates that the model is not a good fit (not reasonable). The sum of the residuals for a least - squares regression line is 0, and the vertical axis shows the residuals (observed value - predicted value).

Answer:

A. The x - axis appears in the middle of the graph; B. If there is an obvious pattern, the model is probably reasonable.