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- A knowledge of the four operations from lessons N2a, N2b, N2c, and N2d is assumed.
- N12a – Interpreting fractions and percentages as operators
Part 1 – Questionnaires (KS3 recap only; not part of the GCSE)
Part 2 – Sampling
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- S2a – Frequency tables (which can be used to collect data from questionnaires)