Corporation has 11,900 shares of $100 par value, 7%, preferred stock and 45,000 shares of $10 par value common stock outstanding at December 31, 2020. Answer the questions in each of the following independent situations. (a) If the preferred stock is cumulative and dividends were last paid on the preferred stock on December 31, 2017, what are the dividends in arrears on December 31, 2020, balance sheet

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i. e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i. e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.