# R-Squared

##### Summary

This glossary contains definitions of technical and marketing terms referenced across DAO.AD documentation.

##### Definition

<span style="color: rgb(86, 86, 106);">R-squared is a key metric used to evaluate the fit of a statistical model, such as MMM, showing how well the data points used to train the model match the predicted outcomes. R-squared ranges from 0 to 1, where 0 indicates no explanatory power and 1 indicates a perfect fit.</span>