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Tim Harford and a panel of experts discuss pre-election polls and election fact checking. Plus, is Beeston in Nottinghamshire really the most adulterous town in the country?

Why don’t all the opinion polls give the same results? Plus, would Labour’s plan to introduce a rent cap work, and how boring has this election been? The podcast features a collection of interviews from Radio 4's PM programme.

Why don’t all the opinion polls give the same results? Plus, would Labour’s plan to introduce a rent cap work, and how boring has this election been? The podcast features a collection of interviews from Radio 4's PM programme.

It was recently reported that the number of women training to become Catholic nuns in Great Britain has reached a 25-year high. What's the long-term trend – are more women becoming nuns? Tim Harford looks at figures from the UK and across the world. Plus, Matt Parker the stand-up mathematician is invited back to the programme to respond to a listener's query about his theory on the best way to fin...

It was recently reported that the number of women training to become Catholic nuns in Great Britain has reached a 25-year high. What's the long-term trend – are more women becoming nuns? Tim Harford looks at figures from the UK and across the world. Plus, Matt Parker the stand-up mathematician is invited back to the programme to respond to a listener's query about his theory on the best way to fin...

On the eve of the UK's general election, Tim Harford takes a look at what polling data can tell us about predicting elections. Is the number of Catholic nuns on the up? What's the long-term trend – are more women becoming nuns in the UK? Tim Harford looks at the figures. Plus, Matt Parker the stand-up mathematician is invited back to the programme to respond to a listener's query about his theory...

On the eve of the UK's general election, Tim Harford takes a look at what polling data can tell us about predicting elections. Is the number of Catholic nuns on the up? What's the long-term trend – are more women becoming nuns in the UK? Tim Harford looks at the figures. Plus, Matt Parker the stand-up mathematician is invited back to the programme to respond to a listener's query about his theory...

Are migrants ‘stealing’ jobs; does South Africa have more asylum seekers than any other country in the world? These are some of the claims we explore this week in the midst of some of the worst xenophobic attacks in recent years in South Africa. Plus – could you go to jail for reporting false statistics? You might in Tanzania where they are in the process of bringing in a law to tackle publishing...

Are migrants ‘stealing’ jobs; does South Africa have more asylum seekers than any other country in the world? These are some of the claims we explore this week in the midst of some of the worst xenophobic attacks in recent years in South Africa. Plus – could you go to jail for reporting false statistics? You might in Tanzania where they are in the process of bringing in a law to tackle publishing...

Are we witnessing a jobs ‘miracle’? Also under scrutiny - Scotland’s deficit; a mansion tax; and what would a Miliband-SNP pact cost us? The podcast features a collection of interviews from Radio 4's PM programme.

Are we witnessing a jobs ‘miracle’? Also under scrutiny - Scotland’s deficit; a mansion tax; and what would a Miliband-SNP pact cost us? The podcast features a collection of interviews from Radio 4's PM programme.

A young listener who needs a liver transplant has received an offer from his brother to act as a living donor. What are the statistics on survival? Plus, is it true that a child goes missing every 90 seconds in the USA? This programme was first broadcast on the BBC World Service.

A young listener who needs a liver transplant has received an offer from his brother to act as a living donor. What are the statistics on survival? Plus, is it true that a child goes missing every 90 seconds in the USA? This programme was first broadcast on the BBC World Service.

Fact-checking the politicians during the election campaign on NHS funding; rail fares and the railways; public spending; debt and the deficit; the Right-to-Buy; and education. The podcast features a collection of interviews from Radio 4's PM programme.

Fact-checking the politicians during the election campaign on NHS funding; rail fares and the railways; public spending; debt and the deficit; the Right-to-Buy; and education. The podcast features a collection of interviews from Radio 4's PM programme.

Can you trust the figures given to you by the political parties during the UK's General Election campaign period? We examine and unpick the statistics so you can decide how useful they are. The podcast features a collection of interviews from Radio 4's PM programme. We look at zero hours contracts, non-dom tax status and the broader economy.

Can you trust the figures given to you by the political parties during the UK's General Election campaign period? We examine and unpick the statistics so you can decide how useful they are. The podcast features a collection of interviews from Radio 4's PM programme. We look at zero hours contracts, non-dom tax status and the broader economy.

Professor Hans Rosling - perhaps best-described as a kind of international development myth buster - delivers his Ignorance Test. Hans asked presenter Ruth Alexander three questions from the test. Can you do any better? This programme was first broadcast on the BBC World Service.

Professor Hans Rosling - perhaps best-described as a kind of international development myth buster - delivers his Ignorance Test. Hans asked presenter Ruth Alexander three questions from the test. Can you do any better? This programme was first broadcast on the BBC World Service.

Is it really true that ability in mathematics and chess are somehow linked? Tim Harford pits his wits against a math-professor-turned-professional-chess-player, John Nunn. This programme was first broadcast on the BBC World Service.

Is it really true that ability in mathematics and chess are somehow linked? Tim Harford pits his wits against a math-professor-turned-professional-chess-player, John Nunn. This programme was first broadcast on the BBC World Service.

The Germanwings A320 tragedy, in which 150 people died, is the latest in a series of fatal crashes over the past year. Are more planes crashing, or does it just seem that way? Plus: is the number of penalties Chelsea Football Club have been awarded in the Premier League this season "abnormally low" as they have claimed? This programme was first broadcast on the BBC World Service.

The Germanwings A320 tragedy, in which 150 people died, is the latest in a series of fatal crashes over the past year. Are more planes crashing, or does it just seem that way? Plus: is the number of penalties Chelsea Football Club have been awarded in the Premier League this season "abnormally low" as they have claimed? This programme was first broadcast on the BBC World Service.

A major 30-year study claims to show breastfed babies become more intelligent, higher earning adults. It's not the first time we've heard that breastfeeding raises IQ levels; but is this evidence any more convincing? Ruth Alexander and Hannah Moore explore the details with Dr Stuart Ritchie from The University of Edinburgh. This programme was first broadcast on the BBC World Service.

A major 30-year study claims to show breastfed babies become more intelligent, higher earning adults. It's not the first time we've heard that breastfeeding raises IQ levels; but is this evidence any more convincing? Ruth Alexander and Hannah Moore explore the details with Dr Stuart Ritchie from The University of Edinburgh. This programme was first broadcast on the BBC World Service.