Q.3.1 A bag contains 10 green and 5 blue marbles. You are asked to select two marbles from the bag. The first marble selected will not be placed back into the bag.

Q.3.1.1 Construct a probability tree for the various possible outcomes that may occur and determine their probabilities. Q.3.1.2 What is the probability that both marbles will be the same colour?

Q.3.2 Events A and B are such that = 0.18 and = 0.53. Given that A and B are independent and non-mutually exclusive, determine ().