AP AP Statistics Past Papers

The 2025 AP Statistics Free-Response section provided a balanced assessment spanning data exploration, experimental design, binomial and discrete probability distributions, hypothesis testing for proportions and means, and an investigative task evaluating effect sizes (Cohen's d). Candidate performance revealed significant recurring issues in writing rigorous statistical justifications, properly referencing population parameters, and avoiding deterministic language in inference conclusions.

The 2024 AP Statistics Free-Response section provided a balanced and conceptually rigorous assessment across exploring data, experimental design, probability models, and inference. The paper placed high demands on full statistical communication, requiring clear parameter definitions in context, precise justification of sampling conditions (including pooling for proportions), and interpretation of novel skewness metrics in the Investigative Task.

The 2023 AP Statistics Free-Response section consisted of six multi-part questions totaling 24 raw points (scaled to 50% of the exam composite). It evaluated data exploration, experimental design, discrete probability, paired inference for means, bivariate regression inference, and an investigative task integrating sampling distributions of non-standard statistics (the sample range). Mean performance was highest on regression and discrete probability, while the matched pairs t-test proved the most challenging.