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I teach curve fitting with this dataset and recently added the fifth dataset. It illustrates Simpsons paradox. https://www.linkedin.com/posts/panela_loved-addi

• aleyan 1y ago
  That's an amazing addition! Once I read about Simpson's paradox[0], couldn't help but seeing it or suspecting it everywhere. Luckily, it is not a true paradox, and it can resolved if underlying data is available and not just summary statistics. I recommend putting together the Quintet in one image, so that the original 4 charts, plus the new one are all visible and interpretable together. It will be learning aid for decades to come. [0] https://en.wikipedia.org/wiki/Simpson's_paradox https://en.wikipedia.org/wiki/Simpson's_paradox
  • __mharrison__ 1y ago
    Yes, not saying the data dinosaur isn't cool. But for real-world applications, the quartet with the addition of this fifth dataset is more useful for pedagogical purposes.