Based on the following information, what is the standard deviation of returns?

$\backslash$table$[[,\backslash$table$[[$Probability$],[$of state of$]],\backslash$table$[[$Rate of$],[$Return if$]]],[$Economy$,$Economy,state Occurs$],[$Recelsion$,\mathrm{.}26,-\mathrm{.}108],[$Noxmal$,\mathrm{.}29,\mathrm{.}123],[$Boom$,\mathrm{.}45,\mathrm{.}233]]$

$19\mathrm{.}21\%$

$19\mathrm{.}73\%$

$27\mathrm{.}94\%$

$25\mathrm{.}61\%$

$13\mathrm{.}86\%$