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ACARA AC9M7ST02, Numerical data displays

Year 7 Β· Statistics

Create numerical data displays such as stem-and-leaf plots, then compare the shape, centre and spread and note any outliers.

Below are free printable maths worksheets that support AC9M7ST02. 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 AC9M7ST02 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.

Teaching guide

What students learn

Create numerical data displays such as stem-and-leaf plots, then compare the shape, centre and spread and note any outliers.

How to teach it

Build a display such as a stem-and-leaf plot, then describe the shape, centre and spread and point out any outliers by reading the plot.

Worked example
A data display shows: 11 (x6), 19 (x3), 13 (x4), 6 (x3), 4 (x3), 5 (x2). Which value occurs most often?
Answer: 11
Why: 11 occurs 6 times, the highest count

Generated and checked in code, so it is correct.

Watch out for

Uneven stems or unsorted leaves, and describing only the highest value instead of the whole distribution.

Make a worksheet for AC9M7ST02
More Year 7 Statistics codes: AC9M7ST01 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.