The table below shows historical annual returns for stocks of companies X and Y over recent years. Calculate the arithmetic average returns. In addition, calculate their historical variances, as well as their historical standard deviations. Returns Year X Y 1 7% 23% 2345 25 44 14 -13 -15 16 -27 52 Requirement 1: (a) The arithmetic average return of company X's stock is: (Click to select) (b)The arithmetic average return of company Y's stock is: (Click to select) v Requirement 2: The historical variance of company X's stock returns is: (Do not round intermediate (a) calculations.) (b) (Click to select) The historical variance of company Y's stock returns is: (Do not round intermediate calculations.) (Click to select) v Requirement 3: (a), The historical standard deviation of company X's stock returns is: (Do not round intermediate calculations.) (Click to select) |