The United States Senate contains two senators from each of the 50 states.
(a) If a committee of 8 senators is selected at random, what is the probability that it will contain
at least one of the two senators from California?
(b) What is the probability that a group of 50 senators selected at random will contain one senator
from each state?

www.math.csusb.edu/faculty/hasan/465_SampleQuiz_1.pdf