At St. Algebra College, the 200 freshmen enrolled in introductory biology took a final exam on which

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At St. Algebra College, the 200 freshmen enrolled in introductory biology took a final exam on which their mean score was 72 and their standard deviation was 6. The following table 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.)

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

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