Covariance and Correlation

I think of covariance as a measurement similar to a line’s slope except that instead of using a slope between 2 points we’re using a slope of many points of measurements, which are measurements of distances from means.

Covariance and correlation (Ben Lambert)

Basics of correlation and covariance (Minitab docs)

How to Measure the Covariance and Correlation of Data Samples (Dummies)

Covariance, Variance and the Slope of the Regression Line (Khan Academy)

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