More or Less: Behind the Stats

Tim Harford on claims that keen runners might be damaging their health. Plus, tuition fees; affairs among cruise passengers; UK election safe seats; loyal listeners' favourite statistics.

How to use mathematics to find your life partner. Plus: what are the chances that two friends, given the same due date for their babies' birth, actually do give birth on the same day? This programme was first broadcast on the BBC World Service.

Fact-checking the Conservatives' employment claims; the price of milk; unhappy teachers; how to use maths to find your life partner; baby due dates; teen pregnancies.

Who is in the world's wealthiest elite, and where do they live? Which are the world's best and worst board-games? Oliver Roeder, a senior writer for FiveThirtyEight, says a statistical analysis can tell us. This programme was first broadcast on the BBC World Service.

Are the majority of hate crimes in the UK directed against Jewish people? Plus: who are the wealthiest 1% and politicians' healthcare connections examined.

In the wake of the Paris killings, an imam in Paris told the BBC that most terrorism victims around the world are Muslim. Is that true? Plus: The death toll of the Boko Haram attack in Baga, Nigeria. This programme was first broadcast on the BBC World Service.

The Conservatives' plans to achieve a budget surplus by 2019-20 have led to near universal acknowledgment that big reductions in spending would be required. However, David Cameron said this week that government spending would only need to be reduced by 1% per year. So, would Conservative cuts be big or small? Plus: are 95% of terrorism victims Muslim; Nigeria's Baga death toll; the world's best and worst board games; species decline.

Most cancers are caused by "bad luck" according to reports of a new study. But, actually, the study doesn't say that. Tim Harford finds out what the research really tells us. This programme was first broadcast on the BBC World Service.

The NHS in England has missed its four-hour A&E waiting time target with performance dropping to its lowest level for a decade, it's reported. Tim Harford takes a closer look at the numbers. Plus: do 85 people really own half the world's wealth; bad luck and cancer; beware the statistics which are true but unfair; and the dubious fashion for international rankings.

What is the most important number in the world? Robert Peston tells us and Helen Joyce and Dr Hannah Fry choose their most memorable numbers from 2014. This programme was first broadcast on the BBC World Service.

Tim Harford and guests look back at some of the weird and wonderful numbers of 2014. Featuring contributions from Simon Singh, Sir David Spiegelhalter, Helen Joyce, Nick Robinson, Helen Arney, Pippa Malmgren, Paul Lewis and Carlos Vilalta.

How optimistic are people about the future? The BBC's Evan Davis tells More or Less as the programme looks back at the most interesting and important numbers of 2014. This programme was first broadcast on the BBC World Service.

What is so special about 39,222 Mexican teachers? In the first of three episodes looking back at 2014, Mexico specialist Professor Carlos Vilalta tells Tim Harford. This programme was first broadcast on the BBC World Service.

Did almost 80% of the males born in the Soviet Union in 1923 not survive World War Two, as has been claimed online? Plus: the problem with China’s economic figures. This programme was first broadcast on the BBC World Service.

Zimbabwe’s budget provided a fascinating insight into the country’s economy last week. Ben Carter looks at what the numbers mean for the future prosperity of Zimbabwe and the challenges the nation faces. The programme hears from David Blair, Chief Foreign Correspondent at The Daily Telegraph, Julian Rademeyer, director of fact checking website Africa Check and Russell Lamberti, author of When Money Destroys Nations.This programme was first broadcast on the BBC World Service.