grade | ||||
| Frequency | Percentage | Effective Percentage | Cumulative Percentage |
First grade | 115 | 16.7 | 16.7 | 16.7 |
Sophomore | 147 | 21.4 | 21.4 | 38.1 |
Third grade | 139 | 20.2 | 20.2 | 58.4 |
Fourth grade | 286 | 41.6 | 41.6 | 100 |
Total | 687 | 100 | 100 |
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