Suppose i plan to drive across the san francisco bay bridge from berkeley, park at a parking facility near the san francisco airport (sfo), then take a parking shuttle from the parking facility to the airport departure terminal. there is a 30% chance that the bay bridge will be congested with traffic. if it is, it will take 1 hour to drive to the parking facility. if not, it will take 38 minutes to drive to the parking lot. the parking shuttle takes 10 minutes to get to the airport departure terminal from the parking lot. suppose it is equally likely that i must wait 0, 1, 2, 3, 4, 5, 6, 7, 8 or 9 minutes for the parking shuttle once i arrive at the parking lot, and that the amount of time i must wait for the parking shuttle is independent of the time it takes me to drive to the parking lot from berkeley. 1. the expected value of the time it takes to drive from berkeley to the airport parking lot . 2. the standard error of the time it takes to drive from berkeley to the airport parking lot minutes. 3. the expected value of the waiting time for a parking shuttle is . 4. the standard error of the waiting time for a parking shuttle . 5. the expected time it takes to get from berkeley to the san francisco airport by driving and taking the parking shuttle is . 6. the standard error of the time it takes to get from berkeley to the san francisco airport by driving and taking the parking shuttle .