Cheatsheet · Grade 10 · 2 pages · PDF

Averages and Spread MeasuresCheatsheet

The whole topic on a page or two, for the night before.

A complete 20-page IGCSE guide to averages and measures of spread. It covers the mean, median and mode from lists, frequency tables and grouped data, and when to choose each one. On the spread side, it covers range, quartiles, the interquartile range, cumulative frequency graphs and box-and-whisker plots. Every method comes with step-by-step worked examples, and there is a dedicated section on comparing two data sets in context. It ends with a formula summary, a keyword guide and exam tips.

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• Main Notes · 21 pages

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  The full notes: one idea per page, a worked example beside every rule.

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• Cheatsheet · 2 pages

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  The whole topic on a page or two, for the night before.

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• Worksheet · 41 pages

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  Practice questions in the order the notes teach them.

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• Solutions · 28 pages

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  Every worksheet question worked in full.

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