Using the following returns, calculate the arithmetic average returns, the variances, and the standard deviations for $x$ and $Y.$

$\backslash$table$[[,$Returns$],[$Year$,x^R,$Y$,],[1,13\%,24\%,],[2,31,45,],[3,20,-11,],[4,-21,-25,],[5,22,53,]]$

a$.$ Calculate the average return for $x.$

b$.$ Calculate the average return for Y$.$

c$.$ Calculate the variance for $x.$

d$.$ Calculate the variance for $Y.$

e$.$ Calculate the standard deviation for $x.$

f$.$ Calculate the standard deviation for $Y.$