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

$\backslash$table$[[,$Returns$],[$Year$,x,Y,],[1,21\mathrm{.}2\%,24\mathrm{.}6\%,],[2,-16\mathrm{.}2,-3\mathrm{.}2,],[3,9\mathrm{.}2,26\mathrm{.}6,],[4,18\mathrm{.}4,-13\mathrm{.}4,],[5,4\mathrm{.}2,30\mathrm{.}6,]]$

a$.$ Calculate the average returns for $x$ and $Y.$

Note: Do not round intermediate calculations and enter your answers as a perc

b$.$ Calculate the variances for $x$ and $Y.$

Note: Do not round intermediate calculations and round your answers to $6$ deci

c$.$ Calculate the standard deviations for $x$ and $Y.$

Note: Do not round intermediate calculations and enter your answers as a perc