by @timoelliott@mastodon.social (source)
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Cartoon of a professor in a classroom pointing at a blackboard saying "every single person who confuses correlation and causation ends up dying"
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Dang, it sucks that death somehow causes misunderstandings of empiricism
Agreed, the correlation between 2 random variables is undefined if one of the variables is actually a constant (the formula reduces to 0/0)