The federal government requires a car manufacturer to have a minimum miles per gallon (mpg)average over the cars it makes. Suppose that the models and mpg's for a manufacturer are Corsair (10 mpg), Futura (9 mpg), retro (16 mpg), and Envy (24 mpg). Twenty percent of the cars sold are Corsairs, 30% are Futuras, 40% are retros, and 10% are Envys. Find the average mpg for this manufacturer.

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Quizplus · Accepted Answer

The average mpg can be calculated by multiplying each car's mpg by its percentage of total cars sold and then summing these products: (0.20 * 10) + (0.30 * 9) + (0.40 * 16) + (0.10 * 24) = 2 + 2.7 + 6.4 + 2.4 = 13.5 mpg.

The Federal Government Requires a Car Manufacturer to Have a Minimum