Moderate# Data Analysis: Residual Plots

APSTAT-TV4FUG

Which of the following statements is/are true concerning residual plots?

I.A residual plot is constructed by plotting the independent variable against the residual on the y-axis.II.A residual plot should have a positive slope if the slope of the least squares regression line is above zero.III.A residual plot shows how the errors in a linear regression model are arranged.