Suppose your expectations regarding the stock market are as follows:

Use above equations to compute the mean and standard deviation of the HPR on

stocks. $($Do not round intermediate calculations. Round your answers to $2$ decimal

places.$)$

$15\mathrm{.}80\%,23\mathrm{.}84\%$

$15\mathrm{.}81\%,21\mathrm{.}95\%$

$11\mathrm{.}85\%,20\mathrm{.}59\%$

$11\mathrm{.}86\%,22\mathrm{.}03\%$