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Regression

Coefficient of Determination Calculator

Standalone R² for a linear fit between two variables.

Related regression

Simple Linear RegressionFit ŷ = a + bx and test whether x predicts y.Multiple Linear RegressionFit a model with several predictors and inspect each coefficient.Outlier CalculatorFlag outliers using the 1.5×IQR rule.Quadratic Regression CalculatorFit ŷ = a + bx + cx² by least squares.

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