Grade 10 · Statistics · 92 pages · PDF

Averages and Spread Measures

Clear, exam-focused notes on mean, median, mode, range, quartiles and box plots, with fully worked examples.

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.

What's in the pack

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• Main Notes · 21 pages

  Main Notes

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

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• Cheatsheet · 2 pages

  Cheatsheet

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

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  FreeAdd for free

• Worksheet · 41 pages

  Worksheet

  Practice questions in the order the notes teach them.

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• Solutions · 28 pages

  Solutions

  Every worksheet question worked in full.

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Topics covered

• Mean from a list and a frequency table
• Estimated mean from grouped data
• Median from a list and a frequency table
• Mode and modal class
• Choosing the right average
• Range
• Quartiles and the interquartile range
• Cumulative frequency graphs
• Box-and-whisker plots
• Skewness from a box plot
• Comparing two data sets
• Formula summary and exam tips

Format

Print-ready PDF

Items

4

Delivery

By email