Use the following returns for $x$ and $Y.$

$\backslash$table$[[$Year$,$Returns$],[1,22\mathrm{.}4\%,28\mathrm{.}2\%,],[2,-17\mathrm{.}4,-4\mathrm{.}4,],[3,10\mathrm{.}4,30\mathrm{.}2,],[4,20\mathrm{.}8,-15\mathrm{.}8,],[5,5\mathrm{.}4,34\mathrm{.}2,]]$

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$.,32\mathrm{.}16.$

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$.,32\mathrm{.}16.$

$\backslash$table$[[,$X$,],[$a$.$ Average return,,$\%,],[$b$.$ Variance,,,$],[$c$.$ Standard deviation,,$\%,]]$