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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 鈥榥ew鈥� 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 鈥搕he 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

Counting Catholics

Tim Harford asks how the figure of 1.2 billion Catholics world-wide is calculated.

• 10 mins

Is the Kenyan election already decided?

Do Kenyans vote along ethnic lines? More Or Less investigates.

• 10 mins

HIV in numbers

With the news that a baby has been 鈥榗ured鈥� of HIV we look at the numbers.

• 10 mins

Are there more black men in college or prison in the US?

Last week the US Speaker said that there were more black men in prison than in college.

• 10 mins

Can big data save lives?

Ruth Alexander speaks to Kenneth Cukier about how data can be used.

• 10 mins

That's not much gold

What if a super-villain took control of the world鈥檚 gold and melted it into a cube?

• 10 mins

Communicating Risk

It's the 4th anniversary of the earthquake which devastated the city of L鈥橝quila in Italy.

• 10 mins

Margaret Thatcher in numbers

Baroness Margaret Thatcher, who died aged 87, was Britain鈥檚 first female prime minister.

• 10 mins

Austerity: A Spreadsheet Error?

The story of the student who uncovered a mistake in a famous economic paper

• 10 mins

Are Manchester United a one-man team?

Lead scorer power calculated; and, maths problems raised in the Kercher murder case

• 9 mins

The Maths of Mozart and Birds

The maths behind Mozart's opera The Magic Flute

• 10 mins

How do you calculate a dog鈥檚 true age?

It is often said that one dog year equals seven human years. But is it true?

• 9 mins

Cancer Risk and Romanian crime

Assesing the probabilities of cancer and is the UK suffering a Romanian crime wave?

• 9 mins

Ryanair punctuality; mistakes in academic papers

Ryanair claims that more than 90% of its flights land on time but do the numbers prove it?

• 9 mins

The Maths of Spies and Terrorists

How feasible is it for the authorities to keep track of everyone on their watch list?

• 9 mins

Sex on the Brain?

It is often said that men think about sex every seven seconds, but is it true?

• 9 mins

Does a Child Die From Hunger Every 15 Seconds?

It is a popular statistic used by celebrities and charity campaigners but is it true?

• 9 mins

Will 40 per cent of the world's workforce really be in Africa by 2050?

How do we calculate future population projections in Africa?

• 9 mins

How Long Will You Live?

Why life expectancy around the world has increased by six years in the past two decades

• 9 mins

Does sex really make the world wide web go round?

Is the internet really 37% porn and does American football have a crime problem?

• 9 mins