Suppose your expectations regarding the stock market are as follows: E(r)=∑s=1s​p(s)r(s)Var(r)≡σ2=∑s=1s​p(s)[r(s)−E(r)]2SD(r)≡σ=Var(r)​​ Required: Use above equations to compute the mean and standard deviation of the HPR on stocks. (Do not round intermediate calculations. Round your answers to 2 decimal places.)