Correlation Coefficient Calculator

Group 1 Numbers (y):
Group 2 Numbers (x):

Correlation Coefficient (r):


Note: Data should be separated by coma (,), space ( ), tab, or in separated lines.
Pearson Correlation Coefficient (r) is used for measuring the linear dependence of two variables.

Pearson Correlation Coefficient Formula:

   

Where:
  • xi: the ith number of x
  • yi: the ith number of y
  • n: total numbers of x or y
  • r: correlation coefficient, -1 <= r <= 1, 1 represents strongly positively correlated, -1 represents strongly negatively correlated, 0 represents no correlation.
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