Consider the following information: rate of return if state occurs state of probability of economy state of economy stock a stock b recession .10 .04 − .17 normal .60 .09 .12 boom .30 .17 .27
a. calculate the expected return for stocks a and b. (do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e. g., 32.16.)
b. calculate the standard deviation for stocks a and b. (do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e. g., 32.16.)