Value | Category | Cases | |
---|---|---|---|
1 | very easy | 9 |
0.6%
|
2 | quite easy | 35 |
2.2%
|
3 | quite hard | 364 |
22.6%
|
4 | very hard | 832 |
51.7%
|
8 | don't know | 369 |
22.9%
|