← Back to all tests

Regression

Quadratic Regression Calculator

Fit ŷ = a + bx + cx² by least squares.

X values0 values recognizedY values0 values recognized

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.Coefficient of Determination CalculatorStandalone R² for a linear fit between two variables.