It depends on how many number are there on the die.
The probabilityof ROLLING a sum of 12 is 1/36 ( 1 in 6 for each die = 1/6 x 1/6 = 1/36) The probabilityof NOT ROLLING a sum of 12 is 35/36 ( 1 - 1/36)
On a standard 6 sided die then the probability would be 1/6 if it is a 12 sided die then it would be 1/12 it varies by how man sides of the die there are.
It is not!
The answer depends on what "rolling a one" refers to.rolling a sum of one,rolling a difference of one,rolling a product of one,rolling a one on one die only,rolling a one on one or both dice.Unfortunately these probabilities are different and the question is ambiguous.
The probability of rolling at least one 2 when rolling a die 12 times is about 0.8878. Simply raise the probability of not rolling a 2 (5 in 6, or about 0.8333) to the 12th power, getting about 0.1122, and subtract from 1.
The probability is 1/6.
Since there is only one even prime, 2, the probability of rolling a 2 with one die is 1 in 6.
One sixth
one out of 6
Rolling one die, it is 1/6. Rolling two dice, it is 2/6, which can be simplified to 1/3 or 33.33%.
The probability of rolling any single number of a regular die on one roll is one in six, or 1/6, or 0.166666....
It is rolling 1 or 2.