Correlation Coefficient Calculator
https://www.calculators.org/math/correlation.php25.09.2019 · Here is the correlation co-efficient formula used by this calculator Correlation (r) = NΣXY - (ΣX) (ΣY) / Sqrt ( [NΣX2 - (ΣX)2] [NΣY2 - (ΣY)2]) Formula definitions N = number of values or elements in the set X = first score Y = second score ΣXY = sum of the product of both scores ΣX = sum of first scores ΣY = sum of second scores