Discover the Pearson Correlation Coefficient (r) with our free online calculator. This statistical tool helps you measure the strength and direction of a linear relationship between two continuous variables, X and Y. Simply input your data sets to get instant, accurate results for your research or data analysis.
Formula:
The Pearson Correlation Coefficient (r) is calculated using the formula:
r = Σ((Xi - ̄X)(Yi - ̄Y)) / √(Σ(Xi - ̄X)2 × Σ(Yi - ̄Y)2)
Where:
- Xi: Individual data points of the X variable
- Yi: Individual data points of the Y variable
- ̄X: Mean of the X variable
- ̄Y: Mean of the Y variable
- Σ: Summation (total of all values)