12 points wer (CHAPTER 13) Your two favorite companies are Firefox and Twitter You feel like every year in the future wil be randomly either a thumbs up your or a thumbs down year, which will determine how high the annual return on your stock investment into each of these companies' stock will be as shown in the table below Firefox Twitter State of the economy Probability of the state of the economy "Thumbs up "Thumbs down Return 2 Return15 Return 20 Return-10% ON (a) The Expected Return for Firefox's stock equal (6) The Expected Return of a portfolio with.wow invested into Firefon stock and rom wested into Twitter stockograal