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The Tour de France and the statistics of cheating

Can maths prove whether the Tour de France has clamped down on the use of banned drugs?

• 10 mins

Gun laws and gold medals

Would tighter gun laws lead to fewer gun deaths? Also: how Olympians have changed.

• 10 mins

How extraordinary is Ye Shiwen?

How extraordinary was Ye Shiwen's Olympic performance? More or Less looks at the numbers.

• 10 mins

How to lose money - fast

Is the rapid growth of high frequency trading progress or a threat to the financial system

• 10 mins

Levelling the statistical playing field

Which countries over and under achieved at London 2012?

• 10 mins

Are African leaders more likely to die in office?

Are African leaders more likely than their counterparts elsewhere to die in office?

• 10 mins

How to explain infinity to a four-year-old

Can Johnny Ball explain infinity to a 4-year-old? Plus, an interview with Count von Count.

• 10 mins

Where are all the US Paralympics gold medals?

Why did the USA top the gold medals league in the Olympics, but not the Paralympics?

• 10 mins

Investigating crime statistics

Investigating Sweden's high rape rate; and which surprising countries top kidnap league?

• 10 mins

Factchecking America

We ask - who fact-checks the fact-checkers?

• 10 mins

Plenty more fish in the sea?

Newspaper headlines claim "Just 100 cod left in the North Sea". Can that be right?

• 10 mins

Predicting the Presidency

This week Nate Silver tells us who he thinks will win the 2012 Presidential race.

• 10 mins

Predicting the global population

Predicting the global population

• 10 mins

Life-saving Economics

How Nobel prize-winning economists Alvin Roth and Lloyd Shapley are helping save lives.

• 10 mins

Predicting L'Aquila Earthquake: is it right to blame the scientists?

On More or Less this week we look at how the probability of an earthquake is estimated.

• 10 mins

US Convictions

Do 99.5% of prosecutions in the US end up in convictions as Conrad Black claims?

• 10 mins

Polling voodoo? Predicting the US election

How did Nate Silver predict the outcome of voting in every state in the US elections?

• 10 mins

Brain food and bacteria

Ruth Alexander explains the numbers and statistics in the news and in life.

• 10 mins

Fergie-time

Fergie-Time. Do Manchester United really get more added time at the end of matches

• 10 mins

How reliable is Kevin Pietersen?

Assessing the cricketer's performance in the recent test match between England and India.

• 10 mins

What is "rare"?

When we say something is rare what do we mean?

• 10 mins

Fact-checking US gun-crime statistics

Tim Harford investigates the numbers in the debate on firearms deaths.

• 10 mins

Numbers of 2012

Tim Harford and guests look back at the most surprising statistics of 2012.

• 10 mins

The Parable of the Ox

Tim Harford tells us about a 'guess the weight of the ox' competition.

• 10 mins

Food waste and Scrabble

Reports this week suggest that we are wasting 50 per cent of our food globally.

• 10 mins

Indian Farmer Suicides

This week Ruth Alexander is looking at farmer suicides in India

• 10 mins

Fat or Fiction

A ‘new’ BMI calculation has been proposed by Oxford Mathematician Professor Nick Trefethen

• 10 mins

A case of statistical significance in Greece

The case of Andreas Georgiou, head of the Greek statistics agency, charged with treason

• 10 mins

The end of the penny.

Canada has stopped distributing its smallest coin –the one cent or the penny.

• 10 mins

How many people support Manchester United ?

This week Ruth Alexander asks whether Manchester United claim 650 million fans worldwide.

• 10 mins