Annual and Average Returns for Stocks, Bonds, and T$-$Bills, $1950$ to $2017$

$\backslash$table$[[,,,\backslash$table$[[$Long$-$Term$],[$Treasury Bonds$]],$T$-$bills,$],[1950$ to $2017,$Average,$12\mathrm{.}7\%,6\mathrm{.}6\%,4\mathrm{.}30\%,],[1950$ to $1959,$Average,$20\mathrm{.}9,0\mathrm{.}0,2\mathrm{.}00,],[1960$ to $1969,$Average,$8\mathrm{.}7,1\mathrm{.}6,4\mathrm{.}00,],[1970$ to $1979,$Average,$7\mathrm{.}5,5\mathrm{.}7,6\mathrm{.}30,],[1980$ to $1989,$Average,$18\mathrm{.}2,13\mathrm{.}5,8\mathrm{.}90,],[1990$ to $1999,$Average,$19\mathrm{.}0,9\mathrm{.}5,4\mathrm{.}90,],[2000$ to $2009,$Average,$0\mathrm{.}9,8\mathrm{.}0,2\mathrm{.}70,],[,2010,$Annual Return,$15\mathrm{.}1,9\mathrm{.}4,0\mathrm{.}01],[,2011,$Annual Return,$2\mathrm{.}1,29\mathrm{.}9,0\mathrm{.}02],[,2012,$Annual Return,$16\mathrm{.}0,3\mathrm{.}6,0\mathrm{.}02],[,2013,$Annual Return,$32\mathrm{.}4,-12\mathrm{.}7,0\mathrm{.}07],[,2014,$Annual Return,$13\mathrm{.}7,25\mathrm{.}1,0\mathrm{.}05],[,2015,$Annual Return,$1\mathrm{.}4,-1\mathrm{.}2,0\mathrm{.}21],[,2016,$Annual Return,$12\mathrm{.}0,1\mathrm{.}2,0\mathrm{.}51],[2017,$Annual Return,$21\mathrm{.}8,8\mathrm{.}4,1\mathrm{.}39,],[2010$ to $2017,$Average,$14\mathrm{.}3,8\mathrm{.}0,0\mathrm{.}29,]]$

You have a portfolio with an asset allocation of $50$ percent stocks, $24$ percent long$-$term Treasury bonds, and $26$ percent T$-$bills. Use these weights and the returns given in the above table to compute the return of the portfolio in the year $2010$ and each year since. Then compute the average annual return and standard deviation of the portfolio. $($Do not round intermediate calculations. Round your answers to $2$ decimal places.$)$You have a portfolio with an asset allocation of $50$ percent stocks, $24$ percent long$-$term Treasury bonds, and $26$ percent T$-$bills. Use these weights and the returns given in the above table to compute the return of the portfolio in the year $2010$ and each year since. Then compute the average annual return and standard deviation of the portfolio