2. Grade 10 test results from 10 students
12, 14, 4.5, 16, 22, 20, 11, 22, 19, 17
Test out of 26
Calulate the mean:

3. 12, 14, 4.5, 16, 22, 20, 11, 22, 19, 17
Determine the mode:

4. 12, 14, 4.5, 16, 22, 20, 11, 22, 19, 17
Determine the median:

5. Calculate your percentage if your mark was 17.

6. Calculate your PERCENTILE RANKING
Ranking: how does one mark compare
with all the others.
12, 14, 4.5, 16, 22, 20, 11, 22, 19, 17

7. Equation:
B: the number of scores Below a given score
E: the number of scores Equal to a given score,
including the given score.
n: the total number of scores
** do not show with decimal values, round
up to next whole number**

8. What if your mark was 12?
12, 14, 4.5, 16, 22, 20, 11, 22, 19, 17
Percentage: 46%
Percentile Ranking: 25th percentile

9. Your Assignment
Page V­F­6
Questions 1 ­ 7