13. A stud ent-faculty government committee of 4 people is to be formed from 20 student volunteers and 5 faculty volunteers. a. if one person from the group of volunteers is chosen at random to draw the names out of a hat, what is the probability that the person drawing the names is a student? b. How many ways can the committee of four be formed if there are no restrictions on composition. How many ways can two ofthe students be chosen? How many ways can 2 faculty be chosen? What is the probability that the random selection of the four-person committee will result in two students and two faculty? 15