Can someone please show mw step by step how to do this problem?

Suppose your expectations regarding the stock market are as follows: Probability HPR 0.4 32% State of the Economy Boom Normal growth Recession 0.3 0.3 20 16 EO) = 2 )r(9) S=1 Var(r) = of = POrs- EOr SD(U) =0 = VVar (r) 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