To make hard decisions, you need hard facts. Medical statistics can help us to decide what treatment to look for when we are ill, and to estimate our chances of recovery.
Science advisors to government are an embattled lot. Remember the l'Alquila earthquake debacle or David Nutt's stance on drugs which cost him his job. Bridging the gap between politics and science isn't easy. Politicians like clear messages but science, and the reality it tries to describe, is rarely clear-cut.
This issue's teacher package brings together all Plus articles on probability and statistics, exploring anything from maths in the dock to games of chance. It also has some handy links to related problems on our sister site NRICH.
Good news! The first episode of a new maths podcast, Relatively Prime, came out this week and it's a good 'un. Host Samuel Hansen has taken the plunge by interviewing our favourite statistician, David Spiegelhalter, and a host of others to explore some fascinating mathematical tools: game theory, risk and relief geometry.
Obesity has reached epidemic proportions and the World Health Organisation estimates that, by 2015, about 3 billion adults will be overweight or obese worldwide. These individuals will be at increased risk of cardiovascular disease, type 2 diabetes, cancer and osteoarthritis.