| Boxplot statistics | |||||
| Variable | lower whisker | lower hinge | median | upper hinge | upper whisker |
| ADD | 26 | 44.5 | 50 | 60.5 | 79 |
| Grade | 14 | 35 | 53 | 60 | 90 |
| Boxplot Notches | |||
| Variable | lower bound | median | upper bound |
| ADD | 47.31 | 50 | 52.69 |
| Grade | 48.79 | 53 | 57.21 |
| Boxplot Means | |||
| Variable | trimmed mean | unbiased SD | |
| ADD | 52.43 | 12.02 | |
| Grade | 49.72 | 17.53 | |
