Suppose your expectations regarding the stock market are as follows: State of the Economy Probability HPR Boom 0.2 40% Normal growth 0.3 20 Recession 0.5 17 E(r)=ss=1p(s)r(s) Var(r)2=ss=1p(s)[r(s)E(r)]2 SD(r)=Var(r) Required: Use above equations to compute the mean and standard deviation of the HPR on stocks