Question $35$

$1$ pts

The returns of two stocks, A and $B,$ over the past five years are shown below. At the beginning of every year, you keep $30\%$ of your investment in stock A and $70\%$ in stock B$.$ Compute the standard deviation of the returns of your portfolio.

$\backslash$table$[[$Year$,$A$,$B$],[1,38\%,0\%$