Figure A shows a scatterplot of the price and age of a random sample of used BMW cars and includes the regression line. Figure B shows a residual plot based on the regression line.
a. Is the linear regression model appropriate for these data? Explain.
b. How old is the car that is farthest from the regression line?

Transcribed Image Text:

Scatterplot 45 40 35 30 25 20 4 Age (years) Residual Plot 1.0 0.5 E 0.0 -0.5 Age (years)