You have $20 to buy snacks for yourself and 4 friends. If you
buy a bag of chips for each
person, and still have $13.75
left, how much did you spend
on each bag of chips?

The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) compute the z-score corresponding to the individual who obtained 42.342.3 miles per gallon. interpret this result.