Calculadora de Coeficiente de Determinación Gratis

Calcula R² para medir qué proporción de la variabilidad es explicada por el modelo de regresión.

R-squared

0.722500

Variance Explained (%)72.2500
1 - R-squared0.277500
Unexplained Variance (%)27.7500

R-squared vs Correlation Coefficient (r)

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Fórmula

## How to Calculate the Coefficient of Determination ### Formula **R-squared = r^2** R-squared is the square of the Pearson correlation coefficient. It represents the proportion of variance in the dependent variable that is predictable from the independent variable. The remaining 1 - R^2 is unexplained variance.

Ejemplo Resuelto

If r = 0.85, how much variance does X explain in Y?

  1. 01R-squared = 0.85^2 = 0.7225
  2. 02X explains 72.25% of the variance in Y
  3. 03Unexplained variance = 1 - 0.7225 = 0.2775 or 27.75%