Only do question 48 47 An urn contains three red and two yel

Only do question (4.8)

4.7) An urn contains three red and two yellow balls. Two balls are randomly selected and their colours recorded. Use a tree diagram to list the 20 simple events in the experiment, keepin in mind the order in which the balls are drawn.

4.8) Refer to Excercise 4.7. A ball is randomly selected from the urn containing three red and two yellow balls. It\'s colour is noted, and the ball is returned to the urn before a second ball is selected. List the additional five simple events that must be added to the dample space in Exercise 4.7

Solution

The additional 5 simple events will be RR, RR, RR, YY, YY because if selected ball is replaced. In second draw, this can be selected again.