Here are engine size (displacement, in liters) and gas mileage (estimated combined city and highway) for a random sample of 35 2016 model cars (taken from Fuel Economy 2016 and identified in the data with Sample = “Yes”).

a) Make a scatterplot for these data.

b) Describe the direction, form, and strength of the plot.

c) Find the correlation between engine size and miles per gallon.

d) Write a few sentences telling what the plot says about fuel economy.