Correlation Calculator
Calculate Pearson correlation coefficient. Determine strength and direction of linear relationships.
8 points detected
Scatter Plot
StrongModerateWeak
Correlation Results
0.9994
Pearson r
0.9988
R-squared (R²)
12.0929
Covariance
Interpretationvery strong positive

There is a very strong positive linear relationship between the variables. 99.9% of the variance in Y is explained by X.

Descriptive Statistics
Mean X:4.5000
Mean Y:9.0625
Sample Size:8
Std Dev X:2.4495
Std Dev Y:4.9399
Correlation Strength Guide
|r| = 1.0Perfect
|r| = 0.9-1.0Very Strong
|r| = 0.7-0.9Strong
|r| = 0.5-0.7Moderate
|r| = 0.3-0.5Weak
|r| = 0-0.3Very Weak

Correlation Formulas

r = Σ(xi - x̄)(yi - ȳ) / √[Σ(xi - x̄)² × Σ(yi - ȳ)²]
R² = r²
Cov(X,Y) = Σ(xi - x̄)(yi - ȳ) / (n-1)

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