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Learning objective overview
Master Teaching Guide coverage for this objective.
Current NZC (2007)
S5-4NA4-3
New NZC (2026)
NZC26-P4-PRO-ETP-K-Y9-08
Resources
- No external resource is currently specified.
Terminology
Task goals
- Foundation: Calculate a simple risk as a proportion or percentage from a given frequency out of a total population or sample.
- Proficient: Calculate and compare absolute risk and relative risk between two groups, and express the difference in context.
- Excellence: Critically evaluate risk claims presented in media or reports, distinguishing absolute from relative risk and identifying misleading or incomplete framing.
Where this fits
What leads into this objective, and where it goes next.
Before
No prerequisite objective linked yet.
You are here
Understanding and Calculating Risk
Know
The estimated probability of an event from an experiment is the number of times the event happens divided by the total number of trials in the experiment (i.e. the relative frequency for that event).
Statement▸
Year 9 · Probability · Experimental and theoretical probability
NZC26-P4-PRO-ETP-K-Y9-08
Next
The official curriculum has no separate Year 10 statements for Probability — Year 9 Probability spans the phase. Try the Statistics strand’s Year 10 statements. Or extend with: Inverse Normal Distribution, The Standard Normal Distribution.
Also under S5-4:
- Expected Number
- Expected outcome (expected value)
- Frequency trees
- Multiplicative Principle for Combined Probability Events
Also under NA4-3:
For teachers
Need the fuller teaching notes for this objective? Open the Teacher guidance PDF.