Problem $10-7$ Calculating Returns and Variability $[$LO $1]$

Use the following returns for X and Y$.$

YearReturnsXY$121\mathrm{.}6\%25\mathrm{.}8\%216\mathrm{.}63\mathrm{.}639\mathrm{.}627\mathrm{.}8419\mathrm{.}214\mathrm{.}254\mathrm{.}631\mathrm{.}8$

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

Calculate the variances for X and Y$.$

Note: Do not round intermediate calculations and round your answers to $6$ decimal places, e$.$g$.,\mathrm{.}161616.$

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