Problem $12-7$ Calculating Returns and Variability $[$LO$1]$

Using the returns shown above, calculate the arithmetic average returns, the variances,

and the standard deviations for $x$ and $Y.($Do not round intermediate calculations. Enter

your average return and standard deviation answers as a percent rounded to $2$

decimal places, e$.$g$.,32\mathrm{.}16,$ and round the variance answers to $5$ decimal places, e$.$g$.,$

$\mathrm{.}16161.)$