AP®StatisticsCollege BoardStudy GuidesUnit 3: Inference for Categorical Data: ProportionsUnit 3 OverviewUnit 3 Topics

Unit 3 Topics (College Board AP® Statistics): Study Guide

Syllabus Edition

First teaching 2026

First exams 2027

Dan Finlay

Written by: Dan Finlay

Reviewed by: Roger B

Updated on

Inference for categorical data (proportions) topic list

  • The table below shows the topics from the Course and Exam Description document

  • You can find which study guide explains each topic

College Board Topic number

College Board Topic name

Relevant study guide

3.1

Estimators

3.2

Sampling Distributions for Sample Proportions

3.3

Constructing a Confidence Interval for a Population Proportion

3.4

Justifying a Claim Based on a Confidence Interval for a Population Proportion

3.5

Setting Up a Test for a Population Proportion

3.6

p-Values

3.7

Carrying Out a Test for a Population Proportion

3.8

Potential Errors When Performing Tests

3.9

Sampling Distributions for the Difference Between Sample Proportions

3.10

Constructing a Confidence Interval for the Difference Between Two Population Proportions

3.11

Justifying a Claim Based on a Confidence Interval for the Difference Between Two Population Proportions

3.12

Setting Up a Test for the Difference Between Two Population Proportions

3.13

Carrying Out a Test for the Difference Between Two Population Proportions

3.14

Setting Up a Chi-Square Test for Homogeneity or Independence

3.15

Carrying Out a Chi-Square Test for Homogeneity or Independence

Unlock more, it's free!

Join the 100,000+ Students that ❤️ Save My Exams

the (exam) results speak for themselves:

I would just like to say a massive thank you for putting together such a brilliant, easy to use website.I really think using this site helped me secure my top gradesin science and maths. You really did save my exams! Thank you.

Beth
IGCSE Student

This website is soooo useful and I can’t ever thank you enough for organising questions by topic like this. Furthermore, the name of the website could not have been more appropriate as it literally did SAVE MY EXAMS!

Fathima
A Level Student

Incredible! SO worth my money, the revision notes have everything I need to know and are so easy to understand. I actually enjoy revising! It makes me feel a lot more confident for my GCSEs in a few months.

Kate
GCSE Student

Absolutely brilliant, both my girls used it for A levels and GCSE. It's saves on paper copies, also beneficial exam questions ranked from easy to hard. It's removed a lot of stress from the exams.

Sameera
Parent

Just to say that your resources are the best I have seen and I have been teaching chemistry at different levels for about 40 years

Mark
Chemistry Teacher

Excellent

Our rating represented in Trustpilot stars
Read more reviews
Previous:The Central Limit TheoremNext:Introduction to Hypothesis Testing
Author
Reviewer
Dan Finlay

Author: Dan Finlay

Expertise: Maths Subject Lead

Dan graduated from the University of Oxford with a First class degree in mathematics. As well as teaching maths for over 8 years, Dan has marked a range of exams for Edexcel, tutored students and taught A Level Accounting. Dan has a keen interest in statistics and probability and their real-life applications.

Roger B

Reviewer: Roger B

Expertise: Maths Content Creator

Roger's teaching experience stretches all the way back to 1992, and in that time he has taught students at all levels between Year 7 and university undergraduate. Having conducted and published postgraduate research into the mathematical theory behind quantum computing, he is more than confident in dealing with mathematics at any level the exam boards might throw at you.