Big Picture : Number Crunching

This magazine is packed with information on data collection, analysis and representation. It includes statistical tests including chi-squared, T-test, spearman's rank. We explore what significant means and look things such a p values, probability and risk. We also explore how science works. We look at bias, the different types of medical study, and real-life examples of when people misuse or misrepresent statistics. More resources online at www.wellcome.ac.uk/bigpicture/numbers