In the NBA, the US professional basketball league, the average player is a shade over 6ft 6 inches tall. So just how much does being very tall increase a man’s chances of becoming a professional player? Tim Harford talks to data scientist Seth Stephens-Davidowitz, author of Who Makes the NBA?: Data-Driven Answers to Basketball’s Biggest Questions.Presenter: Tim Harford Producer: Debbie Richford Production Co-ordinator: Katie Morrison Series Producer: Tom Colls Sound Mix: David Crackles Editor: Richard Vadon(Image: Charlotte Hornets v New York Knicks. Credit: Focus on Sport/Getty Images)