More or Less

There is a black hole in our knowledge of women and girls around the world. Campaigners say that they are often missing from official statistics and areas of their lives are ignored completely - but what needs to be done?

Producer: Charlotte McDonald

The news aggregation website Zimbabwe Today recently ran a headline stating that 74% of African girls aged 15-24 are HIV positive. Although the statistic is not true, Mary Mahy from UNAIDS reveals that young women do have a higher infection rate than young men.

Producer: Laura Gray

What is the average length of stay in a refugee camp? It is regularly reported that it is 17 years but is this true?

Floppy Disks

This week’s shocking revelation of the computer world was that the Department of Defence still uses 1970s floppy disks to coordinate its nuclear weapons systems. But can it possibly be true that you could fit more than three million of them on a single ten dollar USB drive?

Producer: Laura Gray

Recently one of our listeners contacted us to say he heard a BBC correspondent describe the iPhone as the most profitable product in history. It was just an off-the-cuff comment but it got us thinking - could it be true? We compare and contrast a range of products suggested by More or Less listeners to work out if the iPhone truly is the most profitable.

Producer: Laura Gray

Is London the most diverse city in the world? The new London mayor Sadiq Khan has claimed that it is, but is he right? How is diversity measured?

This month, British mathematician Sir Andrew Wiles will go to Oslo to collect the Abel prize, a prestigious maths prize for his work proving Fermat’s last theorem. Science author Simon Singh explains his work.

Producers: Laura Gray and Ed Davey.

At the beginning of the season of the English football Premier League, few people would have been brave enough to predict that Leicester City would finish top. But was it that surprising?

Tim Harford speaks to Lord Finkelstein, a political journalist, who has been running his own statistical model to assess the teams in the Premier League. We also hear from James Yorke from the football analytics website Stats Bomb. Was Leicester’s success down to the team’s skills, or was it down to luck?

Recently one of our listeners contacted us to say he heard a BBC correspondent describe the iPhone as the most profitable product in history. It was just an off-the-cuff comment but it got us thinking – could it be true? We asked listeners to get in touch with their suggestions. We take a look at a handful of them, from Viagra to popcorn in our quest for an answer. Could it be something more historical?

EU and trade: We take a look at the numbers on trade and at the UK’s relationship with the EU. Tim Harford interviews Chad P. Bown, a Senior Fellow at the Peterson Institute for International Economics.

Leicester City's Premier League success: At the beginning of the football season we explored the fallibility of predictions from experts and fans. As the season is ending, that is the only prediction we made correctly – that they are usually very wrong. Leicester City has had an astonishing success in winning the English Premier League. We take a look at the numbers behind the team’s performance.

Sexist Data Crisis: Are countries around the world failing to collect adequate details about their female citizens? Campaigners have argued we are missing data in areas that would help us understand women’s lives better, for example land and inheritance rights. We also explore how women’s work can be overlooked from labour surveys.

A Dutch statistician recently became suspicious by headlines in the Dutch news that women were being discriminated against when it came to getting science research funding. Professor Casper Albers of the Heymans Institute for Psychological Research, Groningen, discovered that the study into the funding process showed that when you looked at the overall numbers of successful candidates, women seemed to be less successful than men. And yet, when you looked at a breakdown of the different subjects people could apply for, it showed that women were not losing out disproportionately to men. How could two opposite findings be true? This contradiction is explained by a famous statistical paradox. We explain what is known as Simpson’s Paradox with the aid of a choir metaphor, performed by the BBC Singers.

How many people have come from the EU to live in the UK? And what impact do they have on the economy? This week it was reported there had been an increase in fire deaths – we aren’t so sure. We explain the achievement of Abel Prize winning mathematician Sir Andrew Wiles for Fermat’s Last Theorem. Plus, we explore the numbers behind Simpson’s Paradox.

What is the most expensive “object” ever built? There are plans in the UK to build a brand new nuclear power station called Hinckley Point. The environmental charity Greenpeace have claimed it is set to be the most expensive object on Earth. But could it really cost more to build than the Great Pyramid of Giza? We take a look at some of the most costly building projects on the planet.