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Kareem Carr, Statistics Person Profile picture
@kareem_carr
May 29, 2023 • 8 tweets • 3 min read • Read on X
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I've seen this thread pop up on my timeline a few times today. I just wanted to say that this claim is a racist dog whistle.
It all starts with this 4chan post where a supposed researcher claims that people with an IQ less than 90 can't understand questions like "How would you have felt yesterday evening if you hadn't eaten breakfast or lunch?"

source: knowyourmeme.com/memes/the-brea… Image
Later in the original thread, the author uses the same breakfast question found in the post on 4chan. Image
The breakfast question is frequently linked to memes implying black people have low IQs. Like this George Floyd meme. Image
Or this one, where they swap a black woman for the much more typical version of the meme which features a white man. ImageImage
See here, where this person suggests that this black teen isn't capable of understanding hypotheticals.

I don't know anything about this person but he's listed on the Southern Poverty Law Center website as a white nationalist. Source: splcenter.org/fighting-hate/… Image
On a personal note, I frequently get people on here asking me the breakfast question in a sad attempt to troll me as a black person on the internet. Image
I'm not accusing the original author of the thread of racism. Perhaps he is unaware of the origins.

But spreading these kinds of ideas without acknowledging the context is exactly how racist ideas get mainstreamed.

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More from @kareem_carr

Kareem Carr, Statistics Person Profile picture
Feb 8
Here's my solution to teaching this kid probability 🧵 Image
Let's just take his system of assigning probability at face value. What's the probability of getting a six when I roll a die?

Well either it happens or it doesn't happen. So, the chances of getting a 6 are 50%.
What's the probability of it being a one? Also 50%. What's the probability of it being a two? Also 50%.

That all adds up to 300% across all scenarios. No problem though. There's a solution.
Read 5 tweets
Kareem Carr, Statistics Person Profile picture
Feb 6
Nate Silver's latest book reads to me like a roadmap of the current moment. It's about a kind of chaotic, aggressive quantitative thinker who's usually wrong, but in calculated ways that lead to massive wins when things break their way. Image
These would include venture capitalists, crypto bros, tech evangelists, AI boosters and even a few influencers. They also seem to be among the most powerful members of MAGA.
Their constant wrongness tempts the rest of society to see them as idiots. That's a mistake. They're often making calculated bets on rare events with massive payoffs.
Read 6 tweets
Kareem Carr, Statistics Person Profile picture
Jan 23
This is a resource thread about the Datasaurus Dozen data and how to get it.

The Datasaurus Dozen is a collection of extremely different datasets with near identical summary statistics.

It’s a reminder to all of us to ALWAYS plot our data.
Here’s what all the datasets look like: Image
It’s available through R using the following code. Technically, all you need is the library call:

library(“datasauRus”)

and then you can access the datasauruss_dozen variable containing the datasets. The rest is just for plotting. Image
Read 6 tweets
Kareem Carr, Statistics Person Profile picture
Jan 20
Nassim Taleb has written a devastatingly strong critique of IQ, but since he writes at such a technical level, his most powerful insights are being missed.

Let me explain just one of them. 🧵 Image
Taleb raises an intriguing question: what if IQ isn't measuring intelligence at all, but instead merely detecting the many ways in which things can go wrong with a brain?
Imagine a situation like this, where there's no real difference between having an IQ of 100-160 in terms of real world outcomes, but an IQ of 40-100 suggests something has gone seriously wrong in a person's life: anything from lead poisoning to severe poverty. Image
Read 11 tweets
Kareem Carr, Statistics Person Profile picture
Jan 15
Here's something counterintuitive, that a lot of people don't understand about heritability as it relates to race, if skin color is heritable, and discrimination based on skin color is common, the bad outcomes due to racism is going to be heritable as well.
Whenever you get any race-related heritability numbers, the first thing you absolutely should do is ask the person giving you those numbers what they did to rule these pathways out as a possibility.
In my experience, the answer is almost always nothing.
Read 4 tweets
Kareem Carr, Statistics Person Profile picture
Jan 15
hey now, this is the guy that said your tweet was racist. go yell at him not me. Image
Let me break this down. The original tweet is doing the statistical equivalent of this. Image
It makes no sense to treat a white person being killed by a black person as special and different from a white person being killed by another white person.
Read 7 tweets

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