Jim likes to day-trade on the Internet. On a good day, he av…

Jim likes to day-trade on the Internet. On a good day, he averages a $1300 gain. On a bad day, he averages an $800 loss. Suppose that he has good days 20% of the time, bad days 40% of the time, and the rest of the time he breaks even. What is the expected value for one day of Jim’s day-trading hobby?