9. The value C(15, 4) is 1365 c) 3003 b) 36 036 d) 32 760 10. Roxana rolls two standard dice. What is the probability of not rolling doubles? a) 1/6 c) 5/6 b) 1/36 d) 35/36 1 1. Rui Xin rolls two standard dice. What is the probability getting a sum less than 5? a) 1/2 c) 1/6 b ) 5/6 d) 5/18 12. Without looking, Paulo randomly selects two socks from a drawer containing four blue, two white, and six black socks. none of which are paired up. What is the probability that he chooses two black socks? b) 6 Ca a) d) c