Find the median, mean and range of the Smile test scores:
Without a calculator
[Drag the faces into order to help find the median.]
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The range is 97 - 7 = 90%
The mean is 60.5%
Drag the Smiley Faces into order to help you find the median.
Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.