Support · Mathematics Standard 11–12 – Year 12 – Standard 2 · The normal distribution

Support Describe the z -score as the number of standard deviations that a value is above or below the mean

Resources for the prerequisite content of this dot point: earlier-stage (or earlier sub-level) dot points in the same strand that students usually need first. Use these to fill gaps before or alongside the core lesson.

Prerequisite links are draft mappings generated from the syllabus structure (earlier stage, same strand, closest content). They are being reviewed by teachers. Spot a poor match? Tell us.

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Prerequisite dot points

Identify standard deviation as a measure of spread

Stage 5 · Data analysis A Draft mapping

  • Interactive toolStarter
    Maths Is Fun: Standard deviation
    Maths Is Fun · Interactive (browser) · Free · Link checked 2026-10-15 · No prep
    Use it for: Plain-English explanation of standard deviation with worked examples and questions.

Calculate the standard deviation of a small dataset using digital tools

Stage 5 · Data analysis A Draft mapping

  • Interactive toolStarter
    Maths Is Fun: Standard deviation
    Maths Is Fun · Interactive (browser) · Free · Link checked 2026-10-15 · No prep
    Use it for: Plain-English explanation of standard deviation with worked examples and questions.

Compare small datasets using standard deviation

Stage 5 · Data analysis A Draft mapping

No checked resources on this prerequisite dot point yet.