| Answer | % Correct |
|---|---|
| I | 100%
|
| X | 95%
|
| V | 94%
|
| C | 93%
|
| L | 90%
|
| M | 90%
|
| D | 88%
|
| IV | 80%
|
| IX | 78%
|
| CI | 64%
|
| CX | 63%
|
| CV | 61%
|
| LX | 61%
|
| LV | 58%
|
| CL | 57%
|
| CD | 56%
|
| DI | 51%
|
| DX | 49%
|
| CIV | 48%
|
| CM | 48%
|
| MX | 48%
|
| CIX | 46%
|
| DL | 46%
|
| DV | 45%
|
| MV | 40%
|
| CLX | 38%
|
| CLV | 37%
|
| CDI | 36%
|
| CDV | 33%
|
| CDX | 33%
|
| DIX | 33%
|
| DIV | 32%
|
| CDIV | 30%
|
| CDIX | 29%
|
| DLX | 26%
|
| CDL | 25%
|
| DLV | 25%
|
| CMX | 22%
|
| CDLX | 21%
|
| CDLV | 19%
|
| CMV | 19%
|