Question

An alcohol awareness task force at a Big-Ten university sampled 200 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. (Please show the calculation process)

Answer 1

a) 0.30

b) 0.90

c) 0.15

Explanation:

When two events are independent then conditional probability take place.