13. TBQ - Finding probability using tree diagrams

A basket contains \(4\) red balls and \(5\) blue balls. One ball is drawn and laid aside, and a second ball is drawn. Draw a tree diagram to list all the possible outcomes and probabilities. Use the tree diagram to answer the given questions.

 

(i) What is the probability of drawing a red ball and then a blue ball? $\frac{i}{i}$

 

(ii) What is the probability of drawing 2 red balls? $\frac{i}{i}$