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

State of

Economy

Recession

Normal

Boom

Probability of Rate of Return if

State of Economy

$\mathrm{.}29$

$\mathrm{.}32$

$\mathrm{.}39$

State $0$ccurs

$-\mathrm{.}105$

$\mathrm{.}120$

$\mathrm{.}230$

Multiple Choice

$18\mathrm{.}90\%$

$27\mathrm{.}49\%$

$19\mathrm{.}47\%$

$25\mathrm{.}20\%$

$13\mathrm{.}75\%$