Answer: [tex]\bold{\dfrac{1}{6}}[/tex]
Step-by-step explanation:
sum is 9 or sum is 11
(3,6)(4,5)(5,4)(6,3) + (5,6)(6,5)
[tex]\dfrac{\#of\ outcomes}{total\possible\ outcomes}=\dfrac{4}{36}\quad +\quad \dfrac{2}{36}\quad =\dfrac{6}{36}\rightarrow \large\boxed{\dfrac{1}{6}}[/tex]