$8-1$ EXPECTED RETURN A stock's retums have the following distribution:

$\backslash$table$[[$State of Economy,Probability of This State,$\backslash$table$[[$Rate of Return $(\%)$ In$],[$the State$]]],[$Boom$,0\mathrm{.}1,50],[$Above Normal,$0\mathrm{.}2,30],[$Normal$,0\mathrm{.}3,15],[$Below Normal,$0\mathrm{.}3,(5)$