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structure.com/courses/1374649/quizzes/1408191/take An alcohol awareness taskforce at a Big Sky university sampled 400 students after the midterm to ask them whether they went bar-hopping the weekend before the midterm or spent the weekend studying and whether they did well or poorly on the midterm. The following result was obtained: Did well on the midterm Did poorly on the midterm Studied for the midterm 150 50 Went bar hopping 80 120 Referring to the table above, what is the probability that a randomly selected student did well on the midterm or studied (for the exam) the weekend before the midterm? (150+80+50) / 400 or 70% 80/400 or 20% None of these answers (80+120-150)/400 or 88% (80+120+50)/400 or 63%