Use the following returns for X and Y$.$ Year Returns X Y $122\mathrm{.}5\%28\mathrm{.}5\%217\mathrm{.}54\mathrm{.}5310\mathrm{.}530\mathrm{.}5421\mathrm{.}016\mathrm{.}055\mathrm{.}534\mathrm{.}5$ A$.$ Calculate the average returns for X and Y$.$ B$.$ Calculate the variances for X and Y$.$ C$.$ Calculate the standard deviations for X and Y$.$