Q8 - You are requested to estimate the relationship between Y and X using the OLS. You are given the following observations on Y and X: Y 41 17 31 25 36 and X 21 32 16 41 34. The slope of the regression equation is a. -0.41 b. -0.48 C. 41.92 d. 43.29 The variance of monthly abnormal returns can be estimated as a. the variance of the error term from the return model b. the variance of the actual return O c. the variance of the expected return O d. all of the answers are correct