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For items 16-18, refer to the following set of grades: Given: {83, 88, 91, 95, 97, 99}
16. What is the mean of the set of grades?
A. 92.16
C. 93
B. 92.17
D. 94
17. What is the median of the set of grades?
A. 92.16
C. 93
B. 92.17
D. 94
18. What is the mode of the set of grades?
A. 93
C. 97
B. 95
D. None
19. Which of the following sets has equal mean, median and mode?
A. {3, 8, 4, 5, 6}
C. {11, 9, 3, 3, 5}
B. {5, 3, 7, 5, 2}
D. {5, 8, 4, 3, 5}
20. The mean score of a set of 50 tests is 83. Find the sum of the 50 test sores.
A. 3150
C. 4050
B. 3750
D. 4150
21. The scores of a student in five tests are 32, 38, 27, 30, and 25. What must be his 6th score to gain an
average of 31?
A. 30
C. 34
B. 32
D. 36
22. The scores obtained in a test of 12 students were as follows: 19, 25, 16, 23, 27, 22, 32, 23, 28, 27, 23,
and 28. The mode is
A. 22
C. 27
B. 23
D. 28
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