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Hay Festival Special

What does it mean to say that the UK is the fifth largest economy in the world? Plus, how to answer multiple choice questions.

This week More or Less goes to meet an army of loyal listeners – and a rebellious clique of disloyal ones – at the Hay Festival.

Tim Harford and Ruth Alexander ask which country is the richest. Plus, we pose a multiple choice question about multiple choice questions.

And we’re joined by Professor David Spiegelhalter, who uses statistics to understand the behaviour of one of the world's most dangerous serial killers.

Available now

28 minutes

Broadcasts

  • Fri 31 May 201916:30
  • Sun 2 Jun 201920:00

Unlock the history and truth behind the data with The OU

Unlock the history and truth behind the data with The OU

Explore how numbers shape, and sometimes mislead us, with The Open University.

When can you trust statistics?

When can you trust statistics?

BBC Ideas discovers three easy ways to help make sense of statistics.

Download this programme

Download this programme

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