Average return on a portfolio is $12\mathrm{.}2$ percent with a standard deviation of $19\mathrm{.}7$ percent.

Assuming that the frequency distribution is at least approximatelv normal. the probability

that the return in a given year is in the range $[$ Select $]$

$-7\mathrm{.}5$ percent to $31\mathrm{.}9$ percent

about $5$

percent.

$-27\mathrm{.}2$ percent to $51\mathrm{.}6$ percent

None of the choices are correct.

$-37\mathrm{.}05$ percent to $61\mathrm{.}45$ percent

$-17\mathrm{.}35$ percent to $41\mathrm{.}75$ percent