Survey says...

testscore
Response Number Percent Graph
I got 0-5 right 1 5%
I got 6-10 right 0 0%
I got 11-15 right 3 14%
I got 16-20 right 11 52%
I got 21-25 right 5 24%
No Answer 1 5%
Total Number of Responses: 21