Possible returns and their probabilities for an asset is given in the table below. The expected return is $14\%.$ Calculate the standard deviation of the asset's return.

$\backslash$table$[[$Probability$,$Return$],[0\mathrm{.}10,0\mathrm{.}56],[0\mathrm{.}15,0\mathrm{.}21],[0\mathrm{.}75,0\mathrm{.}07]]$

$11\mathrm{.}29\%$

$13\mathrm{.}81\%$

$14\mathrm{.}85\%$

$16\mathrm{.}63\%$

$15\mathrm{.}15\%$