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Articles on Statistics

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New cases daily for COVID-19 in world and top countries. Chris55 /wikipedia

Coronavirus: country comparisons are pointless unless we account for these biases in testing

We need to update models on death rates or introduce truly random testing to understand the true impact of the coronavirus.
By adding a ‘digital roll’ to its iconic game, Tim Hortons’ Roll up the Rim contest now has some statistical similarities to slot machines. (Photo Illustration/The Conversation)

Roll up the Rim: How COVID-19 has changed the contest — and maybe your odds of winning

The Tim Hortons coffee chain has made some changes to its iconic Roll up the Rim contest, including the addition of “digital rolls.” A statistician explains how this changes the odds of winning.
A big discrepancy exists between the actual threat of mass shootings and the way the public perceives that threat. Tatiana Akhmetgalieva/Shutterstock.com

Have we become too paranoid about mass shootings?

You’re just as likely to be a victim of a mass shooting as you are to be struck by lightning. So why do nearly 50% of Americans say they’re afraid of being caught in the crossfire?
Some studies don’t hold up to added scrutiny. PORTRAIT IMAGES ASIA BY NONWARIT/shutterstock.com

The replication crisis is good for science

Rising evidence shows that many psychology studies don’t stand up to added scrutiny. The problem has many scientists worried – but it could also encourage them to up their game.

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