-3 -2 -1 mean +1 +2 +3 34% 34% 2.35% 2.35% 0.15% 13.5% 13.5% 0.15% 3. 58.5 60 61.5 63 64.5 66 67.5 A researcher determined that the heights of male students in a particular town are normally distributed with a mean of 63 inches and a standard deviation of 1.5. Use the graph above to answer the following questions: a. What percentage of these students is taller than 66 inches? b. If the data are based on 200 students, how many students are between 60 and 64.5 inches tall? Explain.