Question: Fuel efficiency In an earlier example, we examined data on highway gas mileages of model year 2012 midsize cars. The following dotplot shows the difference (highway - city) in EPA mileage ratings for each of the 24 car models from the earlier example.
(a) Explain what the dot above 12 represents.
(b) What does the graph tell us about fuel economy in the city versus on the highway for these car models? Be specific.