Suppose your expectations regarding the stock market are as follows: E(r)=s=18p(s)r(s)Var(r)2=s=1sp(s)[r(s)E(r)]2SD(r)=Var(r) Required: Use above equations to compute the mean and standard deviation of the HPR on stocks. (Do not round Intermedlate calculatlons. Round your answers to 2 decimel pleces.)