I have a basic understanding of degrees of freedom but I get lost when it's about Spearman's. Every book says $n-2$ however my understanding would mean it is either $n-1$ or $2(n-1)$ but is isn't. How so?
2026-03-28 22:28:05.1774736885
Why is Spearman's rank $n-2$ degrees of freedom?
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