Table 3 Average width of prediction intervals of the linear regression models under study

From: Comparative Assessment of Multiple Linear Regression and Fuzzy Linear Regression Models

Explanatory variable(s) included in the model Simple/multiple linear regression model Fuzzy linear regression model
\(X_{1}\) 1.386 0.808
\(X_{2}\) 2.083 1.234
\(X_{1}\), \(X_{2}\) 6.969 0.257