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# Artículos sobre Statistics

## Does batting second in T20 world cup cricket offer a crucial advantage? A statistics professor explains

Australian fans certainly won’t be complaining, but some critics say T20 world cup matches can be “won on a coin toss”, such is the apparent advantage of batting second. What to the stats really say?

## How many lives have coronavirus vaccines saved? We used state data on deaths and vaccination rates to find out

Using a robust statistical model, researchers estimate that coronavirus vaccines had prevented 140,000 deaths by May 9, 2021.

## Seeking jobs abroad isn’t an option for young Nigerians: they don’t have the right skills

Youth unemployment in Nigeria is a skills mismatch problem – corporations can’t find suitable workers in the midst of a large pool of unemployed workers.

## We’ve heard of R numbers and moving averages. But what are k numbers? And how do they explain COVID superspreading?

The k number tells us whether the spread of a disease is steady or comes in big bursts, with a small proportion of people infecting many others. The latter is know as superspreading.

## Ghana upgraded its census to make it more inclusive: but old tensions still surfaced

Ghana’s latest population census offers a window into the contested terrain of population statistics.

## Low- and middle-income countries lack access to big data analysis – here’s how to fill the gap

Data science infrastructure is sorely needed in many places. Doctors Without Borders brings medical help to nations in need, but similar efforts are relatively small for statistics.

## Studying social media can give us insight into human behaviour. It can also give us nonsense

Researchers found the letters X, Y, and Z make tweets more shareable. The nonsensical result shows how easily statistics can be misused.

## Why we dispute ‘Dunbar’s number’ – the claim humans can only maintain 150 friendships

New research calls into question the validity of ‘Dunbar’s number’.

## What’s a 100-year flood? A hydrologist explains

Flood plain statistics can be confusing. There are better ways to think about the risk of severe weather than 100-year storm or flood.

## UFOs: how to calculate the odds that an alien spaceship has been spotted

One in a million or one in ten? Mathematics can help us work out the odds of whether recent sightings of UFOs are really alien spaceships.

## 578,555 people have died from COVID-19 in the US, or maybe it’s 912,345 – here’s why it’s hard to count

Record-keepers have a pretty good sense of how many people have died. But figuring out the cause of those deaths is a lot trickier – and that’s why reasonable modelers can disagree.

## How to use statistics to prepare for the next pandemic

Many governments, including the US, already collect and make public population statistics that could help them prepare for the next pandemic.

## What the Euro 2020 Panini sticker album can teach us about probability

We used probability to find out what collecting all 678 stickers might cost you.

## Dunbar’s number: why my theory that humans can only maintain 150 friendships has withstood 30 years of scrutiny

The claim that our brain size limits us to 150 meaningful friendships has been challenged by a recent paper.

## Numbers can trip you up during the pandemic – here are 4 tips to help you figure out tricky stats

Understanding numbers in the news or social media can empower you to figure out risks and make good choices. Here’s what to look out for to make sure you aren’t misled by COVID-19 coverage.

## New physics at the Large Hadron Collider? Scientists are excited, but it’s too soon to be sure

A long-sought crack in the Standard Model of particle physics may have been spotted.

## Latest NZ unemployment figure may not give a true picture of the number of people out of work

It’s important to get the figures right to know if we are truely out of any recession, or if we need further stimulus to help get more people into work.

## Vaccine rollouts, school testing and contact tracing could all be improved – here’s how

We are repeatedly missing opportunities to gain quality evidence to help us manage the pandemic – that’s why we need designed evaluations.

## Francis Galton pioneered scientific advances in many fields – but also founded the racist pseudoscience of eugenics

Smart people can have really bad ideas – like selectively breeding human beings to improve the species. Put into practice, Galton’s concept proved discriminatory, damaging, even deadly.

## The simple reason West Virginia leads the nation in vaccinating nursing home residents

West Virginia’s success holds some important lessons for other states and the rest of the COVID-19 vaccine rollout.