Error in plot - Chp 7, Sec 3, Fig. 7.16(a) Part B, residual plot is reversed

[debbieyuster]

In part B of Figure 7.16(a), the residual plot shown beneath the scatter plot seems to be reversed, in other words, the mirror image of the correct plot.

[debbieyuster]

Same problem with Figure 7.16(b) Part D