clematically, then explain verbally what applying the " upes and how it is used. (10 points) 3. Bob would like to go to a movie with a friend, but the friend may get stuck in traffic and not be able to get there. If the friend gets there in time, Bob receives $50 worth of utility, if not, he receives $10 worth of utility. Bob considers the probability of his friend arriving and buys a $20 ticket, indicating that he believes the expected value is at least $20. What is the minimum probability of the friend arriving that Bob used when choosing to buy the ticket? (10 points)