8. Refer to the tree diagram below. Create a problem embedded in this diagram for your table partner to answer, then reverse roles. Do this several times. Be sure to include conditional probability problems. .30 Goto guin 9. Suppose a point was chosen at random from the diagram of a square inscribed in a circle, below. What is the probability the point would lie in the shaded region. Represent segment DO as r, the radius of the circle. EXPRESS YOUR ANSWER IN TERMS OF pi and r. 10. What is the probability a student will graduate in 4 years, given they had a GPA of less than or = 3.5? GPA above 3.5 GPA less than or = 3.5 total Graduated in 4 years 897 1237 2134 Didn't graduate in 4 years 798 4316 5114 total 1695 5553 7248 11. What is the probability a student had a GPA less than or = to 3.5, given they didn't graduate in 4 years? 12. What is the probability a student didn't graduate in 4 years, given they had a GPA above 3.5