voice category | shape of hard palate | shape of epiglottis | |||||
| oval | arched | flat | total | high | lower | total |
basso | 13 | 3 | 0 | 16 | 7 | 9 | 16 |
| 81.30% | 18.80% | 0% | 100% | 48% | 56.30% | 100% |
baritones | 5 | 4 | 2 | 11 | 6 | 5 | 11 |
| 45.50% | 36.40% | 18.20% | 100.00% | 55% | 45.50% | 100% |
tenors | 2 | 1 | 5 | 8 | 6 | 2 | 8 |
| 25% | 13% | 63% | 100% | 70% | 25% | 100% |
Pearson Chi-square |
| 15.15 |
|
|
| 2.09 |
|
p-level |
| 0.004 |
|
|
| 0.35 |
|