Enter paired X and Y values to calculate the correlation coefficient (r).
The calculator uses the Pearson correlation coefficient formula:
r = Σ[(x − x̄)(y − ȳ)]
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√(Σ(x − x̄)² × Σ(y − ȳ)²)
The result ranges from −1 to +1:
• +1 = perfect positive correlation
• 0 = no correlation
• −1 = perfect negative correlation
X: 1, 2, 3, 4 Y: 2, 3, 5, 6 Possible Output: Correlation (r) = 0.9487