| Arabic Numeral | Roman Numeral | % Correct |
|---|---|---|
| 1 | I | 98%
|
| 2 | II | 95%
|
| 3 | III | 95%
|
| 5 | V | 92%
|
| 4 | IV | 91%
|
| 6 | VI | 88%
|
| 7 | VII | 85%
|
| 8 | VIII | 77%
|
| 10 | X | 75%
|
| 9 | IX | 69%
|
| 11 | XI | 63%
|
| 12 | XII | 52%
|
| 13 | XIII | 46%
|
| 14 | XIV | 45%
|
| 15 | XV | 43%
|