The Cold Comfort Bookstore mistakenly sold a new customer a rare book that was reserved for a very important, long-standing patron. The owner is desperately trying to correct the mistake by going into the bookstore's database, Ubik, and finding a way to get the rare book back for the patron while still offering compensation to the new customer. How would the owner BEST obtain the information she needs?

Consider the following information on stocks a, b, c and their returns (in decimals) in each state: state prob. of state a b c boom 20% 0.27 0.22 0.16 good 45% 0.16 0.09 0.07 poor 25% 0.03 0 0.03 bust 10% -0.08 -0.04 -0.02 if your portfolio is invested 25% in a, 40% in b, and 35% in c, what is the standard deviation of the portfolio in percent? answer to two decimals, carry intermediate calcs. to at least four decimals.