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I am trying to write this conditional equation:

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I am not sure what could be the mathematical syntax for saying:

"variables x and y are correlated".

While searching for this, I came to know that it is really tough to find such a thing. Please let me know if you aware of such a mathematical syntax.

In addition, I am also curious to know how would following be written in an equation.

  1. "variables x and y are anti-correlated"

  2. "variables x and y are significantly correlated"

  3. "variables x and y are correlated, while accounting for a covariate z"

  4. "variables x and y are correlated based on ranks" (as in Spearman's correlations)

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    Wrong site? This looks more appropriate for mathSE. – campa Jan 11 at 19:42

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