a) From the given scatterplot, we can see that as weight increases from left to right, we see that the fuel efficiency decreases from up to down. Therefore fuel efficiency tends to decrease here.
b) As there is a negative slope in the plot for the given scatter plot, therefore there is a negative correlation between the two variables here.
c) For 3000 pounds as we can see from the plot, the corresponding fuel efficiency value is 30 miles per gallon.
Therefore 30 is the required predicted value here.
