A sample of 200 students at a Big-Ten university was taken 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 table contains the result. Studying for Exam Went Bar Hopping Did Well in Midterm 80 30 Did Poorly in Midterm 20 70 Referring to Scenario 3, the events "Did Well on Midterm" and "Studying for Exam" are O not mutually exclusive o not dependent O collectively exhaustive none of these options. A sample of 200 students at a Big-Ten university was taken 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 table contains the result. Studying for Exam Went Bar Hopping Did Well in Midterm 80 30 Did Poorly in Midterm 20 70 Referring to Scenario 3, what is the probability that a randomly selected student did well on the midterm and also went bar hopping the weekend before the midterm? O 30/200 or 15% (80 + 30 + 70)/200 or 90% (30 + 70)/200 or 50% (80 + 30/200 or 55%