Who this is for: Cambridge IGCSE Statistics (0479) students revising Conditional Probability who want reliable marks from clear definitions and exam-style practice.
What query it owns: how to understand and revise Conditional Probability in Cambridge IGCSE Statistics.
Why this is safe: this page owns the revision-guide angle, while Tutopiya’s Conditional Probability subtopic page owns the learning resource and the free Conditional Probability quiz owns the practice.

Conditional Probability is a subtopic within Probability on the Cambridge IGCSE Statistics (0479) syllabus. Examiners test precise knowledge, correct method and the ability to interpret command words under time pressure. This guide summarises what Conditional Probability covers, how questions are worded, and where to practise each skill.

Key takeaways

• Conditional Probability sits under the wider topic Probability on syllabus 0479.
• Learn definitions, methods and command-word cues before attempting past papers.
• Use the Conditional Probability subtopic page for explanations and worked examples.
• Check progress with the free Conditional Probability quiz.
• Move between subtopics via the Statistics resource hub.

What is Conditional Probability in Cambridge IGCSE Statistics?

Conditional Probability covers syllabus content that appears in structured questions and extended responses. Candidates must state ideas clearly, show method where required, and use subject-specific vocabulary accurately. The Conditional Probability subtopic page provides notes aligned to 0479.

Core ideas you must master

Area	What it means	How the exam uses it
Key terms	Subject vocabulary for Conditional Probability	Define, state, identify
Methods	Standard procedures and skills	Calculate, explain, describe
Application	Use knowledge in new contexts	Analyse, evaluate, discuss
Exam technique	Command words and mark allocation	Show working; label diagrams

How to revise Conditional Probability — step by step

1. Read the subtopic page — note definitions and worked examples.
2. Summarise key terms on one revision sheet.
3. Practise short questions before long structured answers.
4. Use the quiz to find gaps — Conditional Probability quiz.
5. Review mistakes and re-test weak areas.

Command words that matter

Command word	What the question wants
State / Name	Short factual answer
Describe	Say what happens; sequence or features
Explain	Give reasons; cause and effect
Calculate / Work out	Show method; include units if needed
Analyse / Evaluate	Break down; judge with evidence
Discuss	Range of points; balanced conclusion

Worked exam-style stems

1. “Explain …” — Define the key term, give two linked reasons, use subject vocabulary. Reward: knowledge + development.
2. “Describe …” — Sequence main steps or features without unnecessary opinion. Reward: accuracy + completeness.
3. “Evaluate …” — Present advantages and limitations; conclude with a justified judgement. Reward: balance + evidence.

Practise these on the Conditional Probability subtopic page and Conditional Probability quiz.

Common mistakes students make

• Vague definitions that do not use correct terminology.
• Ignoring command words — describing when asked to explain.
• Missing units or labels in calculations and diagrams.
• Skipping the subtopic quiz before attempting full papers.
• Not linking Conditional Probability to the wider topic Probability.

When you need more support

Work through the Conditional Probability subtopic page and quiz, then get targeted help from a Cambridge IGCSE Statistics tutor.

Frequently asked questions

What is Conditional Probability in Cambridge IGCSE Statistics (0479)?
Conditional Probability is a core subtopic in Cambridge IGCSE Statistics (0479) assessed through structured questions and problem-solving.

Is Conditional Probability difficult at IGCSE?
Difficulty depends on prior knowledge; use the subtopic page and quiz to identify gaps early.

How do I revise Conditional Probability?
Learn definitions, practise command-word questions, then use the free quiz and topical past papers.

Where can I practise Conditional Probability?
Use Tutopiya’s subtopic page and quiz linked from this guide, then the subject resource hub.

Ready to master Conditional Probability?

Open the Conditional Probability subtopic page, explore the Statistics hub, book a free trial, and try the free quiz.

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