Two Very Different Distribution Shapes
Most AP exams peak in the middle; skills-based ones split at both ends
AP Biology — typical
A single peak around a 3.
18.9%
5
24.1%
4
27.4%
3
21%
2
8.6%
1
AP Computer Science A — bimodal
Peaks at BOTH 5 and 1, thin middle.
25.6%
5
21.8%
4
19.8%
3
10.9%
2
22%
1