Question 3 A bag contains 2 white marbles and 3 red marbles: White Red A marble is taken at random from the bag, observed, recorded then replaced. A second marble is then taken out of the bag. a) Draw a tree diagram to show the sample space for this experiment. What is the probability that: b) both marbles are red? C) at least one of the marbles are white? d) both marbles are the same colour