Tim Harford and the More or Less team try to make sense of the statistics which surround us. From BBC Radio 4
http://www.bbc.co.uk/programmes/p02nrss1
Swedish refugees
Have refugees caused a gender imbalance in Sweden? It has been reported that there are 123 boys for every 100 girls aged between 16 and 17 in Sweden. In China, the ratio is 117 boys to 100 girls. We explore if the numbers add up and why this might be.