Save& ExitCheck my$11$eBookPrintReferencesReturnsYear$21\mathrm{.}3\%-16\mathrm{.}39\mathrm{.}318\mathrm{.}64\mathrm{.}324\mathrm{.}9\%-3\mathrm{.}326\mathrm{.}9-13\mathrm{.}630\mathrm{.}9$a$.$ Calculate the average returns for X and Y$.$ Note: Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.,3216.$b$.$ Calculate the variances for X and Y$.$ Note: Do not round intermediate calculations and round your answers to $6$ decimal places, e$.$g$.,161616.$c$.$ Calculate the standard deviations for X and Y$.$ Note: Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$a$.$ Average returnb. Variancec. Standard deviation$\%1$pointsmMc