If it's a six-sided die (like the kind used in craps and most dice games) the odds are 1 in 6.
The probability of rolling a single number on any kind of die* is 1 ÷ (the number of sides).
*Except, of course, for weighted, shaved, or otherwise illegal dice.
1 out of 2 if the die is six-sided.
Assuming a fair die and only one roll, the probability is 1/6.
If you roll the die often enough the probability is near enough 1 so as to make no difference. On a single roll, the probability is 1/2.
4 over/out of 6
3 in 6, or 1 in 2, or 0.5.
Assuming you are talking about fair, six-sided dice, then the probability of rolling a 1 on the first roll in 1/6, and the probability of rolling a 2 on the second roll is 1/6. Putting these together, the probability of rolling 1 on the first die and 2 on the second die is 1/36. If you do not care about the order, then you could roll 1,2 or 2,1; in this case the probability would be 2/36, or 1/18.
Since there is only one even prime, 2, the probability of rolling a 2 with one die is 1 in 6.
1 out of 2 if the die is six-sided.
The probability of rolling a 2 on the first roll is 1 in 6. The probability of rolling a 3 on the second roll is 1 in 6. However, the probability of rolling a 2 on the first roll and 3 on the second roll before you roll at all is 1/6 x 1/6 = 1 in 36.
1 out of 2
2/12 or 1/6
Assuming a fair die and only one roll, the probability is 1/6.
If the die is fair then for a single roll, the probability is 1/2.
If you roll the die often enough the probability is near enough 1 so as to make no difference. On a single roll, the probability is 1/2.
4 over/out of 6
3 in 6, or 1 in 2, or 0.5.
There are 6 outcomes when a die is rolled; 2 is one outcome so the probability of rolling a 2 is 1/6.