WS MoreOrLess: 'Spurious Correlations'

Is the divorce rate in the US state of Maine linked to margarine consumption? It's one of many pairs of statistics featured on the 'Spurious Correlations' website started recently by Tyler Vigen. We talk to him about some of the funniest correlations he's found and the serious point he's trying to make. Plus: World Cup Office Sweepstake strategy. This programme was first broadcast on the BBC World Service.