The residual plot shows the residuals for a person’s age and their vertical jump (in inches). Which statement best assesses the linearity of the relationship between age and vertical jump if it is known that the scatterplot appears to be approximately linear?
Answer
A
Although it is given that the scatterplot is approximately linear, because the residual plot has no obvious pattern, it is appropriate to use the line of best fit to predict vertical jump based on age.
B
Although it is given that the scatterplot is reasonably linear, because the residual plot has no obvious pattern, it is not appropriate to use the line of best fit to predict vertical jump based on age.
C
Although it is given that the scatterplot is reasonably linear, because the residual plot has a clear curved pattern, it is appropriate to use the line of best fit to predict vertical jump based on age.
D
Although it is given that the scatterplot is reasonably linear, because the residual plot has a clear curved pattern, it is not appropriate to use the line of best fit to predict vertical jump based on age.