IB Math AA HL · Unit 4 of 6

IB Math AA HL Unit 4: Statistics & Probability

Unit 4 of IB Mathematics: Analysis and Approaches covers Statistics & Probability. This unit contains 14 topics and 29 sub-topics. Below you'll find free study notes, flashcards, and exam preparation resources for every topic in this unit.

Higher Level students should treat this unit page as a route map: revise the shared core, then use the HL notes and topic links to reach the extra depth and evaluation expected at HL.

14 topics29 sub-topics

Exam technique guide

What Unit 4 covers

Data analysis, correlation and regression, probability, conditional probability and random variables.

Topics in Unit 4

4.1

Sampling & reliability

2 sub-topics

4.2

Data presentation

3 sub-topics

4.3

Central tendency & spread

4 sub-topics

4.4

Correlation & regression

2 sub-topics

4.5

Probability basics

2 sub-topics

4.6

Combined & conditional events

3 sub-topics

4.7

Discrete random variables

1 sub-topics

4.8

Binomial distribution

2 sub-topics

4.9

Normal distribution

2 sub-topics

4.10

Regression & prediction

1 sub-topics

4.11

Conditional probability

1 sub-topics

4.12

z-values & inverse normal

2 sub-topics

4.13

Bayes' theorem (HL only)

1 sub-topics

4.14

Continuous random variables (HL only)

3 sub-topics

Study tip: Work through the topics in order — each builds on concepts from the one before. Start with notes, then reinforce with flashcards and practice questions.

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