Correlation (disambiguation)

Correlation may refer to:

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  Correlation (statistics)

  A statistical measure of the strength and direction of a relationship between two variables.

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  Correlation coefficient

  A family of statistics (e.g., Pearson’s r, Spearman’s rho) that quantify correlation between variables.

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  Cross-correlation (signal processing)

  A technique in signal processing that measures similarity between signals as a function of time or lag.