Student (S) | Tests | Average | ||||
T1 | T2 | T3 | T4 | T5 | ||
S1 | 10.5 | 13 | 12 | 10 | 11.7 | 11.4 |
S2 | 10.5 | 10 | 12 | 11 | 14 | 11.5 |
S3 | 7.5 | 6.5 | 12 | 13 | 14 | 10.6 |
S4 | 14.5 | 20 | 16 | 15 | 14 | 15.9 |
S5 | 14.5 | 12 | 13 | 13 | 14 | 13.3 |
S6 | 5.5 | 7.5 | 12 | 11 | 9 | 9.0 |
S7 | 10.5 | 7.5 | 12 | 11 | 14 | 11.0 |
S8 | 9 | 13.5 | 10 | 11 | 10 | 10.7 |
S9 | 10 | 11 | 12 | 10 | 7.5 | 10.1 |
S10 | 10 | 4.5 | 11 | 10 | 11 | 9.3 |
S11 | 10.5 | 6 | 12 | 11 | 10.8 | 10.1 |
S12 | 11.5 | 12.5 | 13 | 12 | 10 | 11.8 |
Total average | 11.2 | |||||
Standard deviation | 1.9 | |||||
n | 12 |