A correlation coefficient is a measure of degree between two (or) more variables. It also known as cross-correlation coefficient. It may differ from -1 to +1. -1 indicates perfect negative correlation (if one variable increases, the another one decreases) and +1 indicates perfect positive correlation (if one variable increases, the another one increases). In this statistics calculator, calculate the correlation coefficient between the known variable values of X and Y.

To Calculate Correlation Co-efficient:
X Value Y Value
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Correlation Co-efficient Formula :

Correlation(r) = NΣXY - (ΣX)(ΣY) / Sqrt([NΣX2 - (ΣX)2][NΣY2 - (ΣY)2]) Where,

N = Number of values or elements X = First Score Y = Second Score ΣXY = Sum of the product of first and Second Scores ΣX = Sum of First Scores ΣY = Sum of Second Scores ΣX2 = Sum of square First Scores ΣY2 = Sum of square Second Scores

This tool will help you dynamically to calculate the statistical problems. Calculating Correlation Co-efficient is made easier.