Franks teacher put red and blue marbles into a bag. She told class that exactly 3/5 of the marbles are red. She then asked how many total marbles could be in the bag.

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.