The following data consist of observations for the weights of 10 different automobiles
(in 1000 pounds) and the corresponding fuel consumptions (gallons per 100 miles).
Weight (x) Fuel Consumption (y)
3.4 5.5
3.8 5.9
4.1 6.5
2.2 3.3
2.6 3.6
2.9 4.6
2.0 2.9
2.7 3.6
1.9 3.1
3.4 4.9
We would like to find out how y is correlated to x and whether we could represent
that correlation in a functional form valid within the range of the data.