WAEC 2019 · Paper 1 · Q49
The following are scores obtained by some students in a test: 8, 18, 10, 14, 18, 11, 13, 14, 13, 17, 15, 8, 16 and 13. How many students scored above the mean score?
Worked solution (try it first)
- The 14 scores add up to 188, so the mean is .
- Scores above 13.43 are 14, 14, 15, 16, 17, 18 and 18.
- So 7 students scored above the mean, option D.