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

Measures Of Dispersion is a subtopic within Quartiles, Percentiles And Measures Of Dispersion 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 Measures Of Dispersion covers, how questions are worded, and where to practise each skill.

Key takeaways

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

What is Measures Of Dispersion in Cambridge IGCSE Statistics?

Measures Of Dispersion 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 Measures Of Dispersion 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 Measures Of Dispersion	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 Measures Of Dispersion — 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 — Measures Of Dispersion 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 Measures Of Dispersion subtopic page and Measures Of Dispersion 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 Measures Of Dispersion to the wider topic Quartiles, Percentiles And Measures Of Dispersion.

When you need more support

Work through the Measures Of Dispersion subtopic page and quiz, then get targeted help from a Cambridge IGCSE Statistics tutor.

Frequently asked questions

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

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

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

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

Ready to master Measures Of Dispersion?

Open the Measures Of Dispersion subtopic page, explore the Statistics hub, book a free trial, and try the free quiz.

Ready to Excel in Your Studies?

Get personalised help from Tutopiya's expert tutors. Whether it's IGCSE, IB, A-Levels, or any other curriculum — we match you with the perfect tutor and your first session is free.

Book Your Free Trial