A pair of dice is rolled. Find the probability of rolling a) The probability of rolling a sum not more than 11 is (Type an integer or a simplified fraction.) a) a sum not more than 11, b) a sum not less than 11 c) a sum between 3 and 8 (exclusive) b) The probability of rolling a sum not less than 11 is (Type an integer or a simplified fraction.) c) The probability of rolling a sum between 3 and 8 (exclusive) (Type an integer or a simplified fraction.)