The table below shows annual returns for stocks of companies X and Y. Calculate the arithmetic average returns. In addition, calculate their variances, as well as their standard deviations Returns 12 % 23 % 19 YearX 2 30 -8 4 20 22 5 21 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) Requirement 2 ta The variance of company X's stock returns is: (Do not round intermediate calculations.) (Click to select) The variance of company Y's stock returns is: (Do not round intermediate calculations.)