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

a$.$ Calculate the arithmetic 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$.,32\mathrm{.}16.$