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Understanding how averages are calculated – KS4...
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Understanding how different kinds of averages are calculated and behave is an important skill, says Colin Foster…
In this lesson, students tackle a statistical puzzle which forces them to adjust some numbers to create certain values of the mean, mode, median and range in various small datasets.
There are multiple simultaneous constraints, which makes this a challenging problem, and there are opportunities for students to create simple proofs of impossibility.
This lesson reviews mean, median, mode and range by offering a statistical puzzle that illuminates the connections between them.
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