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ACARA AC9M7ST01, Mean, median, mode and range

Year 7 Β· Statistics

Collect discrete and continuous numerical data, calculate the range, mean, median and mode, and decide which measure best describes the data.

Below are free printable maths worksheets that support AC9M7ST01. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teach this code

Deliver a whole lesson on AC9M7ST01 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.

Teaching guide

What students learn

Collect discrete and continuous numerical data, calculate the range, mean, median and mode, and decide which measure best describes the data.

How to teach it

Collect a real numerical data set, then find the range, mean, median and mode and talk about which one best summarises the data and why.

Worked example
Data set: {27, 8, 21, 19, 23, 20, 17, 24}. Find the mean.
Answer: 19.9
Why: (27 + 8 + 21 + 19 + 23 + 20 + 17 + 24) / 8 = 19.9

Generated and checked in code, so it is correct.

Watch out for

Forgetting to order the data before finding the median, and letting a single outlier make the mean misleading.

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More Year 7 Statistics codes: AC9M7ST02 Β· AC9M7ST03
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Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.