3) a study of posttreatment behavior of a large number of drug abusers suggests that the likelihood of conviction within a 2-year period after treatment may depend on the offenders education. the proportions of the total number of cases falling in four education-conviction categories is tabled below. status within 2 years after treatment education convicted not convicted totals 10 years or more 0.10 0.30 0.40 9 years or less 0.27 0.33 0.60 totals 0.37 0.63 1.00 suppose a single offender is selected from the treatment program. define the events a: the offender has 10 or more years of education. b: the offender is convicted within 2 years after treatment. find a) p(a) c) p(ab) d) p(a ∪ b) f) p(a ∪ b) h) p(a|b)