AP Stats practice tests: Best free and paid options

AP Statistics is one of the AP exams where written practice matters more than calculation practice. The FRQ scoring is strict about communication in context, and a statistically correct answer that misses those pieces regularly drops from full marks to partial. Working through released FRQs with the official scoring guides is the fastest way to internalize what the rubric rewards.

AP Central publishes released FRQs going back decades along with the official scoring guides and sample student responses at each score level. For AP Stats, these are the most important practice materials.

Use released FRQs as the primary source for essay practice. Aim for at least 20 across the year, split across content areas (exploratory data, experimental design, probability, inference, chi-squared, regression). From May 2027 the exam has four free-response questions worth 10 points each and no separate investigative task, so also practice the longer multi-part questions and use the sample questions in the revised Course and Exam Description to get used to the new format.

Self-score every FRQ against the scoring guide. Pay attention to where you lose points for communication rather than calculation; that's where most improvement gains sit.

Cost: free.

Princeton Review, Barron's, and 5 Steps to a 5 each include several full-length practice exams (Barron's 2027 edition has nine across the book and online; Princeton Review's 22nd edition has five). Make sure you buy an edition updated for the revised 2026-27 course and the May 2027 exam format.

Use them for timed mock exams in the last four to six weeks. Doing at least one full mock under timing builds the pacing you need.

Limitation: prep book FRQ scoring is often too generous. Trust released materials for scoring calibration.

Cost: about $25to$30 (list price).

Khan Academy's AP Statistics course organizes content and practice by topic. For AP Stats specifically, the topic-by-topic MCQ practice is useful because inference procedures stack (you need to know which procedure to pick before you can execute it), and drilling one procedure at a time helps internalize the assumption checks and formula structure.

Use it as a main MCQ source across the year, but note that as of August 2026 Khan Academy had not yet updated its AP Statistics course for the 2026-27 revision, so skip topics that have left the course (such as the geometric distribution, chi-square goodness of fit and inference for slope). Sal Khan's stats videos are particularly clear on confidence intervals and hypothesis testing, which are the conceptual moves most students struggle with.

Limitation: light on FRQ writing practice. Pair with released FRQs.

Cost: free.

Math Medic (formerly Stats Medic) is an alternative AP Stats curriculum widely used by teachers who prefer an active-learning approach over traditional textbook chapters. (It is a separate organization from Skew The Script, a nonprofit that also offers a free AP Stats curriculum.) Its free lessons include practice with FRQ-style questions, and a paid teacher subscription (Math Medic Plus) adds assessments and other teacher resources.

Use it as a supplement if your classroom curriculum is traditional and you want extra FRQ-format practice with immediate context alignment. Not necessary for every student.

Limitation: not a full replacement for content coverage on its own; works best as supplement to a course.

Cost: lessons free; Math Medic Plus is a paid teacher subscription.

Cognito's AP Statistics offering is a past-papers library: every released FRQ organized by year, with worked solutions showing the full written response including the state-plan-do-conclude framework with in-context conclusions. Worked solutions model exactly what a full-mark response looks like on the page, which is the fastest way to internalize the communication expectations.

Use it as the primary structured FRQ resource, paired with Khan Academy for MCQ volume and content review.

Limitation: past papers, not a full content course. Pair with Khan Academy or a textbook for content coverage.

Cost: subscription.

October to February: work through content topic by topic (Khan Academy or textbook), with Khan Academy MCQ practice as you finish each unit. From October, write full FRQ responses from the beginning; even one FRQ per fortnight in the fall is more valuable than skipping the writing to focus on calculation. March: increase to weekly FRQ practice and add prep-book MCQ practice. April: two full timed mock exams in the current format (42 multiple-choice questions and four 10-point free-response questions). In the final week, review your own scored FRQs rather than adding new material.