Galileo’s notes from his early use of a telescope make for an astonishing read.

## Sample size is important

Sample size plays a critical roll in interpreting data; ignore at your peril.

## Measles and numeracy problems

Some people in the anti-vaccination movement seem to struggle with maths.

## Benford’s law and elections – part 2

A further look at digits in election data and electoral fraud detection.

## Benford’s law and elections – part 1

A look at Benford’s law and its applicability (or lack thereof) to national elections, especially in the UK.

## A short(ish) introduction to the binomial distribution

A brief introduction to the binomial distribution, one of the most important distributions in statistics. Includes an interactive graphic calculator.

## Putting web workers to work

A demonstration of browser-based Monte Carlo simulations using web workers.

## By-election slopegraphs

Using slopegraphs to show voting changes between the 2010 UK general election and recent by-elections.

## Turning out in numbers

Scotland’s independence referendum and political earthquakes.

## A screening-test tool for journalists

Introducing a simple tool I created to help journalists (and others) understand the usefulness (or possibly lack thereof) of screening tests.