Enter the sum of the square of residuals and the total sum of squares into the calculator to determine the coefficient of determination.

## Coefficient of Determination Formula

The following formula is used to calculate the R squared, or the coefficient of determination.

R^{2} = 1 – (RSS/TSS)

- Where R
^{2}is the coefficient of determination - RSS is the sum of squares of residuals
- TSS is the total sum of squares

## FAQ

**What is a coefficient of determination?**

A coefficient of determination, also known as R squared, is a measure of the variation in one variable to another. In other words, it’s a measure of the correlation of data squared.