Winning the lottery

Dr John Talbot (UCL Mathematics) explains the odds of winning the lottery twice in a lifetime. Listen: BBC Radio 5 live '5 live Breakfast' (from 57 mins 17 secs), More: BBC Coventry & Warwickshire 'Breakfast' (from 1 hour 49 mins), BBC Radio Scotland 'Good Morning Scotland' (from 2 hours 23 mins)