what is r in math what is meant in residual standard error in r r excel definition for residual standard error what is r mean squared value is r a term of a term that is confused what is residual standard error mean squared error how to find the residual standard error in r r rmse definition what is residual standard error in statistics what is rss and rmse what is the r term mean squared error what is r residual standard error examples what is r standard error? r is used to calculate a ____ residual standard error r definition of residual standard error for mss how to figure out residual standard error in r what's r's definition for sql and sql what is residual standard error in r what is the r term mean squared error r is confusing on what term