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Questions that seek a conceptual or non-mathematical understanding of statistics.

12 votes
1 answer
3k views

Understanding $\operatorname{Cov}(X,X) = \operatorname{Var}(X)$ intuitively

I just saw this question and the wonderful accepted answer in this forum. I was then triggered to try understanding intuitively why division of $S_xS_y$ is normalizing the covariance: $$\frac{\operato …
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