This is the second part of our new column on risk and uncertainty. David Spiegelhalter, Winton Professor for the Public Understanding of Risk at the University of Cambridge, continues examining league tables using the Premier League as an example. Find out just how much — or how little — these simple rankings can tell you.
This is the second part of our new column on risk and uncertainty.
Let's recall the definitions:
FX = observed frequency of the allele X (where X is one of T, C, A or B), regardless of which other allele it occurs with;
FXY = observed frequency of X allele occurring with Y allele (where X is one of T or C and Y is one of A or B).
Crack a code with Enigma
The Arctic ice cap is melting fast and the consequences are grim. Mathematical modelling is key to predicting how much longer the ice will be around and assessing the impact of an ice free Arctic on the rest of the planet. Plus spoke to Peter Wadhams from the Polar Ocean Physics Group at the University of Cambridge to get a glimpse of the group's work.
