Suppose your expectations regarding the stock price are as follows HPR Ending (including State of the Market Boom Normal growth Recession Probability Price dividends) 0.22 0.21 0.57 49. 5% 21.5 -19.0 $ 140 110 80 Use the equations E (r) Sp (s) r(s) and 2-p (s) r(s)-E(r)|2 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