There are 6X6 or 36 combinations; and you can get a 1 & 6 twice; so the answer is 2/36 or 1/18.
The probability of rolling doubles with two dice is 1 in 6, or about 0.167.
The probability is 1/36.
The probability is 11/36.
The probability is 1/18.
The probability is 1.
The probability of rolling 12 with 2 dice is 1 in 36. The probability of not rolling 12 with 2 dice is 35 in 36.
The probability of rolling a sum of 12 in a single roll of two dice is 1 in 36, or about 0.0278.
The probability of rolling a 4 in a die is 1 in 6, or about 0.1667. The probability, then, of rolling a 4 in at least one of two dice rolls is twice that, or 2 in 6, or 0.3333. The probability of rolling a sum of 4 in two dice is 3 in 36, or 1 in 18, or about 0.05556.
The probability is 1, if the dice are rolled often enough.
The probability of not rolling a sum of six with two fair dice is 1 minus the probability of rolling a sum of six. There are 36 permutations of rolling two dice. Of these, five sum to six, 1+5, 2+4, 3+3, 4+2, and 5+1. The probability, then of rolling a sum of six is 5 in 36. The probability, then of not rolling a sum of six is 31 in 36, or about 0.8611.
The probability of rolling two fives on a pair of dice is 1 in 36, or about 0.02778.
The probability of rolling two prime numbers on a standard pair of dice is 1 in 4, or 0.25. Take the probability of rolling a prime on one die, 3 in 6, or 1 in 2, or 0.5, and square it.