Statistics — Topic Review | Year 9

QUICK RECAP

Connect the ideas

Define a population and sampling frame before choosing a sample.

Use sample proportions to estimate cautiously, never as exact census counts.

Compare centre, spread, shape and overlap, using common scales.

Retain repeated data and investigate unusual observations before correcting errors.

Check axes, denominators and selection methods before accepting a claim.

Report evidence and limitations; association alone does not establish causation.

Complete each paper and show your working.

Statistics — Practice test 1
16 questions · 48 marks · 55 minutes · Scientific calculator
A gradual review of sampling, displays, summaries and evidence-based conclusions.
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Statistics — Practice test 2
16 questions · 46 marks · 55 minutes · Scientific calculator
Use different representations and missing-value questions, then evaluate an investigation.
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Statistics — Applications test
16 questions · 50 marks · 60 minutes · Scientific calculator
Use supplied school and community data to challenge claims and design defensible conclusions.
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