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.

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.

For Richer for Poorer

Charlie has moved between countries and the average income of both has increased. How can this be so?

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 can print out the graphs and boxplots if you like.