5. PROBABILITY: Answer – Q.3 Part A … until you end up with this diagram The tree diagram gives you the same answers as the sample space. And each time there is 50% of giving birth to a boy, and 50% of giving birth to a girl. BBBB BBB G BB G B BB GG B G BB B G B G B GG B B GGG G BBB G BB G G B G B G B GG GG BB GG B G GGG B GGGG There is a total of 16 possibilities of giving birth to a girl or boy, when trying to have 4 children.
6. PROBABILITY: Answer – Q.3 Part B b) What is the probability that Suzy and Bret will have at least 3 girls? By looking at all the possibilities, there are 5 successes where they will have at least 3 girls. P( at least 3 girls) = 5/16 or 31.25%
7. PROBABILITY: Answer – Q.3 Part C c) What is the probability that they will have exactly 2 boys? By looking at all the possibilities, there are 6successes where they will have exactly 2 boys. P( exactly 2 boys) = 6/16 or 37.5%
![PROBABILITY: Question 1 ,[object Object],[object Object],[object Object],Suzy and Brian decide to start a family. They plan to have 4 kids. Answer the following questions:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)