Consider a regression setting in which we construct a scatterplot, fit the regression model Å·, = b0 + b1xi, and generate a residual plot.
(a) Suppose the scatterplot of y versus x is as follows:

Draw a sketch of the resulting residual plot. Label the axes on your graph.
(b) Suppose we fit a regression line to a new set of data and the resulting residual plot is as follows:

Draw a sketch of the scatterplot of y versus x. Label the axes on your graph.

10,0 7.5- 5.0- 2.5 2.5 5.0 75 10.0 12 14 Predicted 16 18