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Posted 3 days ago (via andrewgelman.com)

In an email with subject line, “Article full of forking paths,” John Williams writes: I thought you might be interested in this article by John Sabo et al., which was the cover article for the Dec. 8 issue of Science. The article is dumb in various ways, some of which are described in the technical […]
The post High-profile statistical errors occur in the physical sciences too, i...

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Posted 3 days ago (via andrewgelman.com)

This is a great idea! Unfortunately, only students at Columbia can submit. I encourage other institutions to do such contests too. We did something similar at Columbia, maybe 10 or 15 years ago? It went well, we just didn’t have the energy to do it again every year, as we’d initially planned. So I’m very […]
The post Columbia Data Science Institute art contest appeared firs...

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Posted 4 days ago (via andrewgelman.com)

The story starts as follows: There’s evidence for greater variability in the distribution of men, compared to women, in various domains. Two math professors, Theodore Hill and Sergei Tabachnikov, wrote an article exploring a mathematical model for the evolution of this difference in variation, and send the article to the Mathematical Intelligencer, a magazine that […]
The post Echo Cha...

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Posted 5 days ago (via flowingdata.com)

I talked with Moritz and Enrico on Data Stories, my favorite visualization podcast.…Tags: Data Stories...

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Posted 5 days ago (via rjlipton.wordpress.com)

Simple probabilistic arguments that apply to monoids too Famous Mathematicians source Niels Abel is of course a famous mathematician from the 19th century. Many mathematical objects have been named after him, including a type of group. My favorites, besides groups, are: Abel’s binomial theorem, Abel’s functions, and Abel’s summation formula. Not to mention the prize […]...

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Posted 5 days ago (via junkcharts.typepad.com)

Kaiser Fung (Numbersense, Principal Analytics Prep) discusses John Adams's book on risk measurement, and the problem of data quality in data science and analytics....

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Posted 5 days ago (via flowingdata.com)

The Weather Channel is using a realistic 3-D depiction surrounding a reporter to…Tags: flood, hurricane, weather...

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Posted 5 days ago (via flowingdata.com)

Waffle House activated their storm center in preparation for Hurricane Florence. Their restaurants…Tags: correlation, Waffle House, weather...

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Posted 5 days ago (via andrewgelman.com)

Yes, you can learn a lot from N=1, as long as you have some auxiliary information. The other day I was talking with a friend who’s planning to vote for Andrew Cuomo in the primary. What about Cynthia Nixon? My friend wasn’t even considering voting for her. Now, my friend is, I think, in the […]
The post N=1 survey tells me Cynthia Nixon will lose by a lot (no joke) appeared first...

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Posted 5 days ago (via andrewgelman.com)

Shreeharsh Kelkar writes: As a regular reader of your blog, I wanted to ask you if you had taken a look at the recent debate about growth mindset [see earlier discussions here and here] that happened on theconversation.com. Here’s the first salvo by Brooke McNamara, and then the response by Carol Dweck herself. The debate […]
The post Discussion of effects of growth mindset: Let’...