NOT INDEPENDENT
A box contains four white, three red, and two black marbles. Three marbles are chosen at random.
a. What is the probability that all three are the same color?
b. What is the probability that all three are different colors?
They ARE independent. The previous pick does not influence subsequent picks only their probability.
b. 4/9 * 3/(9-1) * 2/(9-2) = ?