How the Composite Score Works
The AP Statistics exam consists of two equally weighted 90-minute sections taken in the Bluebook app. Neither section dominates your grade: Section I (Multiple Choice) and Section II (Free Response) each contribute exactly 50% to your composite score.
| Section | Format | Raw Points | Weight | Value of 1 Raw Point (on a 100-point scale) |
|---|---|---|---|---|
| Section I: Multiple Choice | 42 four-option questions (discrete items plus two 3-question sets) | 0–42 | 50% | composite points |
| Section II: Free Response | 4 multi-part questions (10 points each, 12.5% of exam per question) | 0–40 | 50% | composite points |
There is no penalty for wrong answers on Section I. A blank response and an incorrect guess both earn 0 points, so you must answer all 42 questions before time expires.
The Composite Formula
Courselo tracks your readiness using the weighted composite fraction :
Multiplying by 100 gives your composite score out of 100:
Analytic Scoring on Section II
Under the revised exam format, all four free-response questions are scored analytically on a 0–10 point scale. AP Readers do not assign holistic letter grades; instead, each question’s scoring guideline breaks the response into 10 specific components, worth 1 point each.
Except where a scoring guideline explicitly notes a dependency, points are earned independently:
- If you make an arithmetic error when calculating a test statistic in Question 3, you lose the calculation point, but you can still earn the p-value and conclusion points if your interpretation is consistent with your incorrect statistic.
- If you cannot figure out Part A of Question 4, you can still earn the points for Parts B and C (if a later part needs Part A’s answer, state a value you are assuming and use it).