AP Statistics Exam Format 2026
days until your AP Stats exam
Thu, May 7 · Afternoon session
The exam at a glance
Section I - Multiple Choice
50% of score
Discrete questions plus question sets based on data displays, studies, and probability scenarios.
Section II - Free Response
50% of score
Five shorter FRQs plus one investigative task worth 25% of the section.
Free-response breakdown
Context and communication are scored explicitly - a right number without interpretation still loses points.
Exploring Data
Describe or compare distributions, often with a boxplot or histogram.
Sampling or Experimental Design
Explain a sampling method or evaluate the design of a study.
Probability / Sampling Distribution
Compute and interpret a probability using distribution properties.
Inference - Test
Run a hypothesis test from scratch: name, check, compute, conclude in context.
Inference - Interval
Construct and interpret a confidence interval with correct conditions.
Investigative Task
A multi-part novel statistics problem that rewards extending what you know.
A 3 means no college credit. A 5 locks it in.
Write one real AP Stats FRQ and see if you're on track.
What the exam covers
Nine units. Inference (7–9) together typically exceeds 40% of the exam.
- U115–23%
Exploring One-Variable Data
- U25–7%
Exploring Two-Variable Data
- U312–15%
Collecting Data
- U410–20%
Probability, Random Variables, and Probability Distributions
- U57–12%
Sampling Distributions
- U612–15%
Inference for Categorical Data: Proportions
- U710–18%
Inference for Quantitative Data: Means
- U82–5%
Inference for Categorical Data: Chi-Square
- U92–5%
Inference for Quantitative Data: Slopes
The four statistical practices
Every rubric row traces to one of these. Communication is its own score category.
- 1Selecting Statistical Methods
- 2Data Analysis
- 3Using Probability and Simulation
- 4Statistical Argumentation
Exam day essentials
Graphing calculator required
Know your inference commands and how to run simulations. It's allowed on both sections.
Formula sheet and tables provided
z, t, chi-square, and F tables plus the standard formula sheet come with the exam - no memorizing needed.
Write in context
Every FRQ loses points if you answer with numbers alone. Always tie conclusions back to the situation.
Frequently Asked Questions
The exam mixes multiple choice with six free-response questions, including an investigative task that rewards statistical communication and reasoning.
Start with the sections that carry the most weight or expose your biggest weakness, then practice under realistic timing.
Match your practice blocks to real section demands so your pacing, accuracy, and task recognition improve together.
Want to know what the real exam feels like?
Start a timed AP Stats practice in the Exam Arena and save yourself ten minutes on exam day.