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  "path": "/824177/oc-these-two-scatter-plots-have-identical-correlation-coefficients-heres-why-one-looks-so-much-tighter/",
  "publishedAt": "2026-05-01T07:47:56.000Z",
  "site": "https://www.usluck.com",
  "tags": [
    "Data Is Beautiful"
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  "textContent": "Both datasets: r = 0.70. Same correlation coefficient. But one looks noticeably more clustered around the regression line. The difference is purely in the standard deviations – not the strength of the relationship. Because Pearson's r converts everything into standard units before measuring, it's blind to how physically spread out the data is. Smaller SDs [...]",
  "title": "[OC] These two scatter plots have identical correlation coefficients. Here’s why one looks so much tighter."
}