Suppose your expectations regarding the stock market are as follows: State of the Economy Probability Boom 0.2 Normal growth 0.5 Recession 0.3 HPR 378 17 -11 E(r) = P(s)r(:) 1 Var(r) = q? - P()[r() - E( ) - SD(Y) = 0 - VVar (7) 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.) Mean Standard deviation