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Counting Fish

I need a figure for the fish population in a lake. How does it help to catch and mark 40 fish?

Statistics - Maths of Real Life

This pilot collection of resources is designed to introduce key statistical ideas and help students to deepen their understanding.

The Surveyor Who Came to Tea

This article discusses how a survey company carries out its surveys and some of the issues involved.

Snow and Cholera

Age 14 to 16
Challenge Level


The circumstances surrounding the story of John Snow and the Broad Street pump are explained on this website supported by the Science Museum. Making the Modern World


Putting 'Snow Broad Street Pump ' into Google will bring up even more information.


' Epidemics are among the most dramatic events that humans experience. In historical times, doctors have struggled to explain why they start and end. These days, we understand that diseases like influenza are caused by small infectious particles called viruses which spread from person to person. But can we say when an epidemic can start and explain why they end ? '





Epidemiology is the study of the spread of disease . This article (which does include some A-Level mathematics) on the Plus website tells you more : The mathematics of diseases

And this article gives more background on Understanding Hypotheses .