| voice category | length of vocal folds | shape of vocal folds | |||||
|
| short | meddle | long | total | Rounded | elongated | total |
| basso | 0 | 0 | 16 | 16 | 9 | 7 | 16 |
|
| 0% | 0% | 100% | 100% | 56.30% | 43.80% | 100% |
| baritones | 0 | 9 | 2 | 11 | 5 | 6 | 11 |
|
| 0% | 81.80% | 18.20% | 100% | 45.50% | 54.50% | 100% |
| tenors | 8 | 0 | 0 | 8 | 5 | 3 | 8 |
|
| 100% | 0% | 0% | 100% | 62.50% | 37.50% | 100% |
| Pearson Chi-square |
| 60.45 |
|
|
| 0.58 |
|
| p-level |
| 0 |
|
|
| 0.745 |
|