Question 2 (15 marks) a. You are considering an investment in two different companies, X and Y. The returns for these securities are shown in the table below. Year 1 2 3 4 5 Returns 14% -21% 17% 9% 23% Returns Y 32% -5% 17% -12% 45% What is the return, variance and standard deviation of each of these individual shares? (9 marks)