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Activities
Predicting AFL winners
This investigation uses side-by-side box plots to predict Australian Football League winners based on their past scoring performances.
Questioning the media
This example links two different media reports on household spending across Australia.
Random or not
This activity is based on a digital learning object which shows that the results of random samples often vary from the expected results. Conclusions based on small random sample sizes can be inaccurate because they are not necessarily representative of the entire distribution.
Sampling from a mystery population
When sampling to determine the nature of an unknown population, reliability increases as sample size increases. In this activity, the sample size is steadily increased and the results compared.
Sampling methods activity
This is a three-stage activity that includes establishing student prior learning, developing fluency, and determining changes in student thinking in relation to sampling methods.
Scale activity
The activity for an example of a graph with a misleading scale is based on discussion questions and then a redrawn graph.
Signature length 1
Data collected from class investigations about signature lengths are used to make predictions about larger populations.
Signature length 2
The question of "How long is a typical year X student’s signature?" is extended to compare two different populations. This activity begins with establishing which populations are sampled and includes making predictions about larger populations.
Sleuthing pie graphs
After reviewing the properties of a pie graph, students investigate another pie graph.
Variation in sample size for coin tosses
Sample size is important for obtaining reliable data. This activity uses technology to produce many trials.
What is typical?
In this activity students use data to test the claims made in article written for the school newspaper.
Writing survey questions
Students use an online tool to construct a survey and collect data for an investigation.
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