More or Less: Behind the Stats - 2011 in numbers

A guide to interesting, informative or just plain idiosyncratic numbers of the year. Plus, does probability really exist? Contributors: David Spiegelhalter, Professor of the Public Understanding of Risk at Cambridge University; Owen Spottiswoode, Fullfact.org; Tracey Brown from Sense about Science; Jil Matheson, UK Statistics Authority; George Monbiot; Sir Mark Walport, Director of the Wellcome Trust; Money Box presenter Paul Lewis; Sports Statistician, Robert Mastrodomenico; Dr Linda Yeuh Economics Correspondent at Bloomberg; Stand up Mathematician Matt Parker

Start the Week - David Hockney Special

On Start the Week Andrew Marr visits the painter David Hockney to find out why he has swapped LA for East Yorkshire. Hockney takes him on a tour of the farm tracks and woods he has been painting near his home in Bridlington, and talks of his fascination at the changes of the season. In his vast studio hang pictures of increasing size and vibrant colour, many painted using his iPad. He might be in his seventies, but Hockney tells Andrew Marr that he's on a roll, busier than ever; excited by the new technology and full of ideas for his next works of art. Producer: Katy Hickman.

More or Less: Behind the Stats - Who are the 1% and the 99%?

Tim Harford on income inequality in the UK, and elsewhere. He speaks to Professor Sir Tony Atkinson of Oxford University; Stewart Lansley, author of 'The Cost of Inequality'; and Professor Donald Boudreaux of George Mason University. Also, David Spiegelhalter, the Winton Professor of the Public Understanding of Risk at Cambridge University explains why he took on what could be his riskiest venture to date - appearing on BBC One's Winter Wipeout. Plus, the magic of maths with magician and Stanford maths professor Persi Diaconis.