A bag contains 11 red and 10 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.1.1.1 Construct a probability tree, indicating the various possible outcomes that may occur, and each of their probabilities. Give the probability values in fraction form. (7)

Q.1.1.2 What is the probability that the two marbles selected will be different colours? Give the probability as a percentage to two decimal places. (3)

Hi tutors I got this question in my trial exams. I completely stuffed it. Can someone please help me with the answers.