Suppose your expectations regarding the stock market are as follows. E(r)=r=1np(s)r(s)Var(r)=2=r=1np(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 intermediote calculations. Round your onswers to 2 decimal places.)