In the data set {(7,7) ; (3,10) ; (5,9) ; (2,12) ; (0,1) ; (6,4) ; (4,10) ; (8,6)}, which point is a possible outlier? 1. (2,12)
2. (0,1)
3. (7,7)
4. (6,4)

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.