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Testosterone and sport

Trans women鈥檚 participation in elite sport

• 9 mins

Hospitalisation rates for children with Covid

What does the data tell us?

• 9 mins

Did lockdowns save any lives?

Did lockdowns actually save any lives?

• 9 mins

Numbers in Ukraine and low seas in Chagos

Troop and casualty numbers in Ukraine

• 9 mins

Does the UK take in more refugees than other European countries?

Fact checking Boris Johnson鈥檚 claim

• 9 mins

Pizza and nuclear war

How good negotiation can help us split pizzas fairly and also avoid nuclear war.

• 9 mins

Why has Hong Kong鈥檚 Covid wave been so bad?

What鈥檚 behind one of the worst Covid death rates ever?

• 9 mins

Will the war in Ukraine cause a global wheat shortage?

How much of the worlds wheat comes from Ukraine and Russia

• 9 mins

Did tea-drinking cut deaths in the Industrial Revolution?

How tea became an accidental lifesaver in 18th Century England.

• 9 mins

Subitising and simplifying: how to better explain numbers

How can we clearly explain complex numbers to the public without losing their meaning?

• 9 mins

Understanding India through data

What can data tell us about a country of 1.4 billion people?

• 9 mins

Sweden鈥檚 polarising pandemic response

Has Sweden鈥檚 pandemic response been a triumph or a disaster鈥�or something in-between?

• 9 mins

Have the oceans become 30% more acidic?

Tim Harford asks how we measure the health of our oceans

• 9 mins

Did the WHO get some of its excess death estimates wrong?

We look at the World Health Organisation鈥檚 latest estimates of the pandemic鈥檚 death toll

• 9 mins

Are just 100 companies responsible for 71% of global emissions?

Looking at numbers on green house gas emissions and stress.

• 9 mins

Noisy decisions

Nobel prize winning psychologist Daniel Kahneman on how 'noise' impacts decision making

• 9 mins

Are girls starting puberty earlier?

We look into a claim that the age of girls鈥� puberty is falling rapidly

• 9 mins

Hannah Fry: Understanding the numbers of cancer

The maths professor on the choices she and others have faced after a cancer diagnosis

• 9 mins

How often do people have sex?

Looking at sex and statistics in Japan and America.

• 9 mins

Ed Sheeran and the mathematics of musical coincidences

Ed Sheeran thinks that musical coincidences will always happen鈥� but do the numbers agree?

• 9 mins

How many American women will have an abortion in their lifetime?

In the wake of the historic overturning of Roe vs Wade, we look at the statistics.

• 9 mins

Does it take 10,000 litres of water to make a pair of jeans?

The numbers behind water use and denim production

• 9 mins

Is Uganda about to become a middle income country?

We assess President Museveni鈥檚 claim that Uganda is nearing a higher economic status.

• 9 mins

Does the World Athletics Championships have a false start problem?

We examine the rules and tech of false starts after the disqualification of Devon Allen.

• 9 mins

How our world measures up

From ancient tally bones to a jar of peanut butter, a look at the history of measurement

• 9 mins

Debunking the Liverpool FC conspiracy theory

We debunk spurious rumours that Liverpool FC use asthma medication to enhance performance

• 9 mins

Is opinion polling broken?

Following some high profile slip-ups in recent US elections, is opinion polling broken?

• 9 mins

The numbers behind 'natural' birth control

We examine online claims about the effectiveness of 鈥渘atural鈥� birth control methods

• 9 mins

Kenya鈥檚 Election Rounding Error

Official figures didn鈥檛 add up - but due to rounding, not fraud

• 9 mins

Can we use maths to beat the robots?

Why improving how we teach and think about maths could help us keep an edge over machines

• 9 mins