User R-squared or Residual Sum of Squares (RSS), which one of these two is a better measure of the goodness of fit model in regression and why?
a) R-squared, as it represents the proportion of variance explained by the model.
b) RSS, as it measures the overall model fit by summing up the squared residuals.
c) Both R-squared and RSS are equally valid measures.
d) It depends on the specific characteristics of the dataset.
