18. Explain the difference between mutually exclusive events and independent events using an example of each to illustrate your answer. (2 marks) 19. Suppose you randomly draw two marbles, without replacement from a bag containing 6 green, 4 red and 3 black marbles (7 marks) a) Draw a tree diagram to illustrate all possible outcomes of this draw (2) b) Determine the probability that both marbles are red (2) c) Determine the probability that you pick at least one green marble (3)