1. In least squares regression, which of the following is not a required assumption about the error term ε? a. The expected value of the error term is one. b. The variance of the error term is the same for all values of x. c. The values of the error term are independent. d. The error term is normally distributed. 2. Larger values of R2 imply that the observations are more closely grouped about the a. Average value of the independent variables b. Average value of the...