4) Randomly selected college students answered a survey about their drinking habits during the last two weeks of the past semester. The table below represents the results of the survey. 15+ drinks during the last two weeks of semester Less than 15 drinks during the last two weeks Males Females 28 10 322 562 If one college student is randomly selected, find the probability that the student a) Drank a minimum of 15 drinks given that the student was a male. b) Was a female or drank less than 15 drinks.