SMOKING AND EDUCATION According to the Centers for Disease Control and Prevention, the percentage of adults 25 yr and older who smoke, by educational level, is as follows:
In a group of 140 people, there were 8 with no diploma, 14 with GED diplomas, 40 high school graduates, 24 with some college, 42 with an undergraduate degree, and 12 with a graduate degree. (Assume that these categories are mutually exclusive.) If a person selected at random from this group was a smoker, what is the probability that he or she is a person with a graduate degree?