Bobby got really interested in linear regression models and started to study more about it. A few weeks later, his daughter came up with a test to check his knowledge. Which of the following statements are true? Select all COHECI answers _ Linear regression models can have many independent variables, but only one dependent variable. The error term, also known as residual, is the unexplained portion of a linear regression model. If the adjusted R2 of a model equals 0.5, this means that the model explains 50% of the variation of the dependent variable. The adjusted R2 of a model will never be greater than the R2 of the model. If the p-value of a coefficient is greater than 0.01, it means that the coefficient is statistically significant. None of the above