P5a – Probability and sampling

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  • A good understanding of ratio and proportion−and the ability to multiply and divide−is helpful.

Skill isolation: finding the value of a denominator given a numerator and an equivalent fraction

Probability and sampling

This lesson consists of an example and exam-style questions about the capture-recapture method of estimating the size of a population (usually of wild creatures).

Teacher resources

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  • Slides in PPTX (with click-to-reveal answers)
  • Slides in PDF (one slide per page, suitable for importing into IWB software)
In the real world

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