When tossing two fair dice at the same time what is the prob

When tossing two fair dice at the same time, what is the probability that the sum is equal to 9?

Solution

Sum = 9

possibilities are : (3,6) ,(4,5),(5,4),(6,3)

total possibilities are 6² = 36

so probablility = no. of possible outcome / total no. of outcomes = 4/ 36 = 1/9