Data from the Office on Smoking and Health, Centers for Disease Control and Prevention examined the relationship between the educational attainment level of adults and whether or not they smoked. The adult's education level was put into one of four categories: "did not finish high school", "high school graduate", "completed some college," and "college graduate." The information is contained in the following probability tree: Education Smoker? Probability .4 11 Yes .044 No H.S. .6 No 066 .34 32 Yes 1088 You may also find the H.S. grad .66 No 2112 24 18 Yes 0432 Some CollegeX .76 No .1368 .14 39 Yes 0546 College gradO .86 No 3354