AP exams, 5 units
AP Statistics exam guide
The revised five-unit AP Statistics framework, from exploring data and collecting it through inference and regression.
Follows the fall 2026 course and exam description, from 11 May 2027
Overview
What AP Statistics covers.
AP Statistics is a college-level introductory statistics course organized around the statistical investigation process: formulating questions, collecting data, analyzing data, and interpreting results. Those four statistical practices are assessed directly, and much of the exam asks for a written interpretation rather than a computed value.
The course was substantially revised effective fall 2026, and the first exam on the new framework is the May 2027 administration. The nine previous units were consolidated into five broader units, several topics were removed, and the exam moves from hybrid to fully digital with a different question mix: more multiple-choice questions and fewer but larger free-response questions. Because the revision is recent, unit weightings and exam details should be confirmed against the current Course and Exam Description.
Arcade Academy is an independent study workspace. Use the official Course and Exam Description as the authoritative content list, and use the unit pages below to organize practice, particularly the written-interpretation work that this exam rewards more than any other AP mathematics exam.
At a glance
- Total time
- 3 hours
- Section I
- 42 multiple-choice questions in 1 hour 30 minutes, 50% of the exam score
- Section II
- 4 free-response questions in 1 hour 30 minutes, 50% of the exam score, each worth 10 points
- Delivery
- Fully digital beginning with the May 2027 exam: both sections are completed in College Board's Bluebook app rather than in paper booklets
- Calculator
- An approved handheld graphing calculator is permitted in addition to the graphing calculator built into Bluebook, and a reference information booklet with formulas and tables is provided
- Framework update
- The course framework was revised effective fall 2026, consolidating the previous nine units into five; confirm current unit weightings and exam details in the official Course and Exam Description
- Score scale
- 1 to 5
- Governing body
- College Board
- Who takes it
- High school students taking a first statistics course for college credit or placement, including many who will not continue in a calculus sequence.
Scoring
The multiple-choice and free-response sections each contribute half of a composite score, which College Board converts to the reported 1 to 5 scale using cut points set for that year's exam. Free-response questions are scored holistically on a rubric that rewards correct interpretation in context, and colleges set their own credit and placement policies.
Exam structure
Units
AP Statistics covers 5 units. Open one for its topics, published weighting, and section-specific study tips.
Unit 1: Exploring One-Variable Data and Collecting Data
Unit 1 combines descriptive statistics with study design, which in the revised framework are taught together as the front half of…
6 topics
Unit 2: Probability, Random Variables, and Probability Distributions
Unit 2 supplies the probability machinery that inference depends on. It covers probability rules, conditional probability and…
6 topics
Unit 3: Inference for Categorical Data: Proportions
Unit 3 introduces statistical inference using proportions. Confidence intervals and significance tests are developed for one…
6 topics
Unit 4: Inference for Quantitative Data: Means
Unit 4 extends inference to quantitative data. It covers t procedures for one mean, for matched pairs, and for the difference…
6 topics
Unit 5: Regression Analysis
Unit 5 covers the relationship between two quantitative variables. Scatterplots, correlation, the least-squares regression line…
6 topics
Study strategies
How to work through this exam.
These strategies follow from the exam's own structure. Adapt them to the time you actually have each week.
- Practice writing full interpretations rather than computing values, because this exam awards most of its free-response points for reasoning stated in context.
- Adopt a single inference template and use it identically for every procedure so that stating hypotheses, checking conditions, computing, and concluding become automatic.
- Learn to read calculator and software output rather than only computing by hand, since the exam frequently supplies output and asks for interpretation.
- Drill the distinction between random sampling and random assignment, which determines whether a conclusion can generalize, claim causation, both, or neither.
- Work released free-response questions alongside their scoring guidelines to see how points are actually awarded before writing many practice answers.
- Confirm the current framework and exam details on the official pages, since the course was revised effective fall 2026 and the May 2027 administration is the first exam on the new framework.
Common questions
AP Statistics questions students ask.
How is the AP Statistics Exam structured?
The exam runs 3 hours. Section I is 42 multiple-choice questions in 1 hour 30 minutes for 50% of the score, and Section II is 4 free-response questions in 1 hour 30 minutes for the other 50%, each worth 10 points. Confirm current details on the official exam page, since the exam changed with the revised framework.
What changed in the revised AP Statistics course?
Effective fall 2026, the previous nine units were consolidated into five, several topics were removed, the four statistical practices were restated, and the exam moved to fully digital delivery with more multiple-choice questions and fewer but larger free-response questions. The official Course and Exam Description is the authoritative description of the changes.
Which parts of the course do students find hardest?
College Board does not rank difficulty. Students most often report that writing conclusions precisely enough to earn full rubric credit is harder than the calculations, and that choosing the right inference procedure takes the most practice. Your own scored practice is the best guide.
How is the exam scored?
Both sections contribute equally to a composite score converted to the reported 1 to 5 scale using cut points set each year. Free-response questions are scored on rubrics that reward contextual interpretation, and colleges decide independently what score earns credit or placement.
What calculator can I use, and is the exam digital?
An approved handheld graphing calculator is permitted in addition to the graphing calculator built into Bluebook, and a reference booklet with formulas and tables is provided. Beginning with the May 2027 exam, AP Statistics is fully digital, with both sections completed in Bluebook. Confirm current policy on the official exam page.
Is Arcade Academy affiliated with College Board?
No. AP® is a registered trademark of College Board, which was not involved in the production of, and does not endorse, this site. Arcade Academy is an independent educational resource.
Before you build the schedule
Exam structures change. Confirm the current format, eligibility, and policies with College Board before you commit to a study plan.
Official exam information opens in a new tabGuide structure last checked against official sources on August 30, 2026.
Markdown version of this guide for citation, offline reading, and language models.
Study AP Statistics with a plan you can keep.
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