what is the average return of Bwhat is the standard deviation of Awhat is the standard deviation of bwhat is the covariance between stock A and stock Bwhat is the standard deviation of Awhat is the standard deviation of bwhat is the covariance between stock A and stock Bwhat is the correlationwhat is portfolio risk if A weight is $60\%$what is the return of the portfolio if stock B weight is $70\%$

the following are possible states of the economy and the returns associated with stocks A and $B$ in those states.

what is the average return of $A$

$\backslash$table$[[$State$,$Probability,Return on A$],[$Good$,0\mathrm{.}3,0\mathrm{.}27],[$Normal$,0\mathrm{.}4,0\mathrm{.}33],[$Bad$,0\mathrm{.}3,-0\mathrm{.}06]]$