SOC At St. Algebra College, the 200 freshmen enrolled in Introductory Biology took a fi nal exam on which their mean score was 72 and their standard deviation was 6. The table below presents the grades of 10 students. Convert each into a Z score and determine the number of people who scored higher or lower than each of the 10 students. (HINT: Multiply the appropriate proportion by N and round the result.)

Xi Z Score Students Above Students Below 60 57 55 67 70 72 78 82 90 95