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PODCAST

More or Less

Tim Harford explains - and sometimes debunks - the numbers and statistics used in political debate, the news and everyday life

science mathematics

All Episodes

21:25

Spreadsheet snafu, ‘Long Covid’ quantified, and the...

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2020/10/07

After nearly 16,000 cases disappeared off coronaviruses spreadsheets, we ask what went wrong. How common are lasting symptoms from Covid-19? If you survey people about the death toll from Covid, they’ll make mistakes. What do those mistakes teach us? Pedants versus poets on the subject of exponential growth. And we dive deep into the unholy marriage of mathematicians, gamblers, and actuaries at the dawn of modern finance.

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28:31

“Record” Covid cases, Trump on the death count, and...

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2020/09/30

Case counts in perspective, a suspect stat from the US, and life lessons from insects.

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29:04

Covid curve queried, false positives, and the Queen’s...

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2020/09/23

A scary government graph this week showed what would happen if coronavirus cases doubled every seven days. But is that what’s happening? There’s much confusion about how many Covid test results are false positives - we explain all. Plus, do coffee and pregnancy mix? And the Queen, Mao, and Gandhi go head to head: who is on the most stamps and coins?

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8:58

The magical maths of pool testing

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2020/09/19

Tim Harford speaks to Israeli researcher, Tomer Hertz, about how the mathematical magic of pool testing could help countries to ramp up their Covid-19 testing capacity.

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28:09

Covid testing capacity, refugee numbers, and mascara

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2020/09/16

Amid reports of problems with coronavirus testing across the UK, we interrogate the numbers on laboratory capacity. Does the government’s Operation Moonshot plan for mass testing make statistical sense? Has the UK been taking more refugees from outside the European Union than any EU country? We explore the connection between socio-economic status and Covid deaths. And we do the maths on a mascara brand’s bold claim about emboldening your eyelashes.

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28:05

Covid cases rising, a guide to life’s risks, and...

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2020/09/09

A jump in the number of UK Covid-19 cases reported by the government has led to fears coronavirus is now spreading quickly again. What do the numbers tell us about how worried we should be? Plus a guide to balancing life’s risks in the time of coronavirus, the government’s targets on test and trace, and a suspicious statistic about the speed of jelly-fish.

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27:57

Schools and coronavirus, test and trace, maths and...

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2020/09/02

As children return to school in England and Wales, we hear about what we know and what we don’t when it comes to Covid-19 risks in school settings. What do the numbers tell us about how well test and trace is working? Will reopening universities really kill 50,000 people? Are the UK’s figures on economic growth as bad as they look? And is maths real? When someone goes viral asking maths questions on social media, More or Less finds answers.

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27:37

Covid plasma therapy

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2020/08/26

Donald Trump says allowing the emergency use of blood plasma therapy for coronavirus patients will save “countless lives” and is “proven to reduce mortality by 35%”. We look at the evidence. Amid talk of coronavirus being back on the rise in the UK, what does the data show? Could screening for breast cancer from the age of 40 save lives? And can it really be true than one in five women in 18th century London made a living selling sex?

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28:08

A-level algorithms, poker and buses

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2020/08/19

We unpick the A-level algoshambles, discover why 1.3 million Covid tests disappeared from the government's statistics last week, and for reasons that may become clear, we examine the chance of being hit by a bus. Plus, what does poker teach us about the role of randomness in our lives?

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9:08

Belarus’ contested election

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2020/08/15

Autocratic leader Alexander Lukashenko claims to have won a landslide in the country’s presidential elections. But how can we know what really happened? Tim Harford delves into the numbers behind the widely-questioned election result, with Dr Brian Klaas and political analyst Artyom Shraibman.

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27:57

Hawaiian Pizza, obesity and a second wave?

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2020/08/12

Covid-19 cases are rising in the UK - is it a sign of a second wave of the virus? We’re picking apart the data and asking how concerned we should be both now and as autumn approaches. Scotland is undercounting Covid deaths, England is overcounting them: we’ll ask why and whether the problems will be fixed. Celebrity chef Jamie Oliver claims over a quarter of all the fruit and veg kids eat is in the form of pizza, can this be true? Plus, as some people are blaming obesity for the severity of the

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8:58

Melting Antarctic ice

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2020/08/08

One More or Less listener has heard that if all the ice in Antarctica melted, global sea levels would rise by 70 metres. But it would take 361 billion tonnes of ice to raise the world's sea levels by just 1 millimetre. So how much ice is in Antarctica? And in the coming years, what impact might temperature changes have on whether it remains frozen?(Gentoo penguins on top of an iceberg at King George Island, Antarctica January 2020. Credit: Alessandro Dahan/ Getty Images)

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10:07

Covid in Africa

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2020/08/01

Do we have enough data to know what’s happening on the continent? We talk to Dr Justin Maeda from the Africa Centre for Disease Control and Ghanaian public health researcher Nana Kofi Quakyi about tracking Africa’s outbreak. Producer: Jo Casserly Picture: Volunteers wait to feed local people during the weekly feeding scheme at the Heritage Baptist Church in Melville on the 118 day of lockdown due to the Covid-19 Coronavirus, Johannesburg, South Africa, 2020. Credit: EPA/KIM LUDBROOK

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8:58

Data in the time of cholera

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2020/07/25

Tim Harford speaks to Steven Johnson about William Farr and the birth of epidemiology in the 1800s.

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8:58

Covid misconceptions and US deaths

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2020/07/18

Tim Harford talks to statistician Ola Rosling about his research into misconceptions about Covid-19. And an update on the epidemic in the US.

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14:41

Sweden’s lockdown lite

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2020/07/11

Unlike its Nordic neighbours, Sweden never imposed a lockdown to stem the spread of coronavirus. Tim Harford speaks to statistician Ola Rosling to find out what the results have been.Presenter: Tim Harford Producer: Jo CasserlyPicture: A woman wearing a face mask stands at a Stockholm bus stop where a sign reminds passengers to maintain a minimum social distance. Sweden 25 June 2020. Credit: EPA/ Stina Stjernkvist

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9:08

Why Trump is wrong about the USA’s coronavirus case...

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2020/07/04

Are cases really rising in the US or are they just testing more? Tim digs into the data.

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28:24

Why did the UK have such a bad Covid-19 epidemic?

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2020/07/01

The UK has suffered one of the worst outbreaks of coronavirus anywhere in the world. We’ve been tracking and analysing the numbers for the last 14 weeks, and in the last programme of this More or Less series, we look back through the events of March 2020 to ask why things went so wrong - was it bad decision-making, bad advice, or bad luck?

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9:11

A new Covid-19 drug and a second wave

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2020/06/27

The steroid Dexamethasone has been hailed a “major breakthrough” in the treatment of Covid-19. But what does the data say? Plus, why haven’t mass protests led to a second wave?

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28:26

Child Poverty, School Inequality and a Second Wave

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2020/06/24

As lockdown eases, why hasn't there been a spike in infections? We get a first look at the evidence for the much-trumpeted Covid-19 treatment, Dexamethasone. Stephanie Flanders tells us what’s happening to the UK economy. Keir Starmer says child poverty is up; Boris Johnson says it’s down, who's right? Plus which children are getting a solid home-school experience, and who is missing out?

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1,086 results

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