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Cricket Ratings

Like all sports rankings, the cricket ratings involve some maths. In this case, they use a mathematical technique known as exponential weighting. For those who want to know more, read on.

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History of Morse

This short article gives an outline of the origins of Morse code and its inventor and how the frequency of letters is reflected in the code they were given.

Box Plot Match

Age 14 to 16 Challenge Level:

Here are six cumulative frequency graphs and six box plots of the same data.
Can you match them up?
You canĀ print out the graphs and boxplots if you like.




















With thanks to Don Steward, whose ideas formed the basis of this problem.