Let X1 and X2 represent, respectively, the engine capacity, in liters, and number of cylinders for the population of two-seater automobiles; let Y1 and Y2 represent the city gas mileage and highway gas mileage, respectively, for these same automobiles. Consider that the data in Table 12.5 constitute appropriate samples from the respective populations. From the supplied sample data, compute the complete set of 6 pairwise correlation coeffcients between these variables. Comment on what these correlation coeffcients mean.