Unit 4 · Statistics and Probability · Topic 4.7

IB Math AI — Discrete random variables

IB Mathematics AI SL topic covering core concepts and exam-style applications.

What you'll learn in Topic 4.7

4.7.1 Discrete Random Variables
4.7.2 Variance and Standard Deviation

Suggested study order: Read the notes for each sub-topic below → test yourself with flashcards → attempt practice questions → review exam technique.

Study resources — 4.7 Discrete random variables

4.7.1

Discrete Random Variables

Notes

4.7.2

Variance and Standard Deviation

Notes

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Topic 4.7 Discrete random variables forms a core part of Unit 4: Statistics and Probability in IB Math AI. Mastering these concepts will strengthen your understanding of connected topics across the syllabus and prepare you for exam questions that require analysis, evaluation, and real-world application.

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Exam technique

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