4. Do seat belts save lives? A public health researcher conducted a cross-sectional study of fatality outcomes and seat belt use of 100 victims of motor vehicle accidents in a large city over the course of one month. There were a total of 30 deaths. Of the 100 victims, 50 wore seat belts. Of those victims who wore seat belts, 10 died. What is the probability that a victim randomly selected from this group was alive, given that they did not wear a seat belt? Filling in the following table will help. Driver Seat Belt Alive Dead Row Totals Worn Not Worn Column Totals a. 0.2 b. 0.4 C. 0.6 d. 0.7 e. 0.8 5 Suppose there are 100 students in the class and 10 of the students currently have the flu