AC9M9ST04
Official content description
choose appropriate forms of display or visualisation for a given type of data; justify selections and interpret displays for a given context
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What Year 9 Maths students should achieve
Coverage is judged against the achievement standard — not by ticking every content description. These are the official Year 9 Maths standard sentences this code builds towards:
- Students assign probabilities to the outcomes of compound events.
- They determine percentage errors in measurements.
- Students expand binomial products, and factorise monic quadratic expressions.
- They design and conduct experiments or simulations for combined events using digital tools.
- Students apply Pythagoras’ theorem and use trigonometric ratios to solve problems involving right-angled triangles.
- They determine sets of outcomes for compound events and represent these in various ways.
The Statistics progression either side of AC9M9ST04
A class can only meet this descriptor if they were taught the one before it. If yours hasn't, that's where the lesson starts — not here.
Taught before · Year 8
- AC9M8ST01investigate techniques for data collection including census, sampling, experiment and observation, and explain the practicalities and implications of obtaining data through these techniques
- AC9M8ST02analyse and report on the distribution of data from primary and secondary sources using random and non-random sampling techniques to select and study samples
- AC9M8ST03compare variations in distributions and proportions obtained from random samples of the same size drawn from a population and recognise the effect of sample size on this variation
Builds towards · Year 10
- AC9M10ST01analyse claims, inferences and conclusions of statistical reports in the media, including ethical considerations and identification of potential sources of bias
- AC9M10ST02compare data distributions for continuous numerical variables using appropriate data displays including boxplots; discuss the shapes of these distributions in terms of centre, spread, shape and outliers in the context of the data
- AC9M10ST03construct scatterplots and comment on the association between the 2 numerical variables in terms of strength, direction and linearity
Other Year 9 Statistics codes
- AC9M9ST01analyse reports of surveys in digital media and elsewhere for information on how data was obtained to estimate population means and medians
- AC9M9ST02analyse how different sampling methods can affect the results of surveys and how choice of representation can be used to support a particular point of view
- AC9M9ST03represent the distribution of multiple data sets for numerical variables using comparative representations; compare data distributions with consideration of centre, spread and shape, and the effect of outliers on these measures
- AC9M9ST05plan and conduct statistical investigations involving the collection and analysis of different kinds of data; report findings and discuss the strength of evidence to support any conclusions
Content description and achievement standard © Australian Curriculum, Assessment and Reporting Authority (ACARA), Australian Curriculum Version 9, used under CC BY 4.0. TeachKoala is not affiliated with or endorsed by ACARA.