"For many people, being left alone with their thoughts is a most undesirable activity,." says a psychologist involved in a study examining reactions to solitude.1In the study,146

college students were asked to hand over their cell phones and sit alone, thinking, for about10

minutes. Afterward,76

of the participants rated the experience as unpleasant. Use this information to estimate the proportion of all college students who would find it unpleasant to sit alone with their thoughts. (This reaction is not limited to college students: in a follow-up study involving adults ages18

to77

, a similar outcome was reported.)