Practice AP Statistics free-response questions with rubric-based scoring. The FRQ section is 50% of your AP Stats score and contains 6 questions, the last of which is the extended Investigative Task.
AP Statistics FRQ Structure
- Questions 1–5 — Short FRQs (4 pts each, 20 pts total): Test individual statistical concepts including probability, inference procedures, experimental design, and data analysis. Each part is independently scored.
- Question 6 — Investigative Task (12 pts): A multi-part problem requiring you to synthesize multiple statistical ideas, often involving a realistic scenario with messy data. Must write in context throughout.
The #1 AP Stats FRQ Mistake
Every statistical conclusion must be stated "in context" — naming the specific variable, population, or study from the problem. Generic answers like "there is a linear relationship" lose a point compared to "there is a positive linear relationship between study hours and exam score for students in Ms. Smith's class." Every sentence of your FRQ response should reference the scenario.
Inference Procedures Always Tested
One-sample and two-sample t-tests, chi-square tests (goodness-of-fit and independence), and linear regression inference appear almost every year. Know the conditions for each procedure cold.
AP Statistics Practice Questions · AP Statistics Study Guide · How to Get a 5 on AP Stats
What AP Statistics FRQ graders reward
The defining rule of AP Stats free response: everything must be in context. Graders reward naming the right procedure, checking its conditions, doing the mechanics, and — most importantly — interpreting the result in the words of the problem, not a generic "we reject H₀." A correct calculation with a context-free conclusion routinely loses the final, most valuable point.
The mistakes that cost the most points
- Skipping conditions (Random, 10%, Normal/Large Counts) before a test or interval.
- Conclusions with no context — name the variable, the population, and what the result actually means.
- Confusing the interval interpretation with the confidence-level interpretation.
- Computing without communicating — define your parameters and name the procedure.
AimFive grades your free-response answers point-by-point on the official rubric with published accuracy data — write one and see exactly which points you earned. Start practicing free.
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