Hint Compare their z scores Last year s Scholastic Assessment Test SAT mean was 500 with standard deviation 100 David scored 350 Last year s ACT mean was 20 with standard deviation 5 Justina scored 15 When comparing these scores to others who took the same test who scored at a higher percentile a These are two different tests there is no way to tell b They both scored in the same percentile and so are the same c David scored higher d Justina scored higher O A OB Oc OD