Try logs. Refer to the previous two exercises. Figure 4.27 is a scatterplot with the least-squares regression line for log salary versus year. For this model, r2 = 0.9995.
(a) Compare this plot with Figure 4.25. Write a short summary of the similarities and the differences.
(b) Figure 4.28 is a plot of the residuals for the model using year to predict log salary. Compare this plot with Figure 4.26 and summarize your findings.