1. Given the finear regression model (x)=7.3+5.2x1+0.05x2. which of the following statements is incorrect? If all the x:s=0, then the average of f(x)=7.3. The MSE is 7.3. The slope of X1 is 5.2 Without knowledge of the p-values, it is not possible to conclude that the X's. are important. (x) will be increased, on average, by 5.2 units if x1 increases by one unit and x2 is held constant. LOOCV is a special case of kefold CV, where k - number of peedictors True False