Actually, I'm not a native speaker, so plz do not write in cursive.

2. Briefly explain whether the following statement is true, false, or uncertain. In the model of y = [30 + [31d + u when the dummy variable d has a value of (0,2) instead of a value of (0,1), the B1 and t values indicate that the dummy variable has a value of (0,1). half of the cases In the model y = [30 + (31x1 + [32x2 + u, If x1 and x2 have negative correlation coefficients and (32 > 0, if x2 is omitted from this model, the estimation coefficient of x1 has a downward bias. 3) When the sample correlation coefficient between two explanatory variables is 0.95, the 0L5 estimator of the explanatory variable has a bias