Probability and Random Selection
A 4 person grievance committee is to be composed of employees in 2 departments, A and B, with 15 and 20 employees, respectively. If the 4 people are selected at random from the 35 employees, what is the probability of selecting:
A. 3 from A and 1 from B?
B. 2 from A and 2 from B?
C. All from A?
D. At least 3 from A?