Consider the following: You hate carrying an umbrella unless it rains. On an interval scale from 0 to 100 where O is hellish and 100 is heavenly, you rate carrying an umbrella on a dry day as a 40. The only thing worse is not having an umbrella in the rain. That's a 30. Rainy days are still rainy but if you have an umbrella they're not awful. You rate that as a 55. Of course, the best scenario is a dry day, unencumbered by any protective device. That's a 65. Should you carry an umbrella or not if there's a 40% chance of rain today? What's the expected utility of carrying an umbrella? O (4)*30 +(.6)'65 O ( 4)65+ (.6)+40 None of these O (4).40+ (6).55 O (4)'55 +(6)'40