There are 21 different combinations of two dice. Three of them total 7 (3 + 4, 2 + 5, 1 + 6), so if you have two 'fair' dice, you have a 1 in 3 chance of totalling 7.
With one roll of three dice, the probability is 7/8.
In one roll the probability is 1/36.
there is a 1 to 5 probablilty that you will roll the sum of 6 with two dice.
The probability is 1 out of two. The primes you can roll are 2,3, and 5.
There is 4 ways to roll a 9 with 2 dice, and 36 possible outcomes. So, the probability of rolling a sum of 9 with two dice is 4/36 or 1/9.
5/36
The probability of rolling a sum of 12 in a single roll of two dice is 1 in 36, or about 0.0278.
It is 5/6.
With one roll of three dice, the probability is 7/8.
The probability that you roll a 3 or a 5 on one or both dice is 20/36 = 5/9
1/12
That depends on whether you roll it twice or not...
It is 1 (a certainty) if you roll it often enough. For a single roll of a fair die, the probability is 1/6.
In one roll the probability is 1/36.
The probability of rolling a 1 on a die is 1/6 if you roll it once.
It is 1: if you roll the die often enough. On a single roll of a fair die, the probability is 1/6.
The probability of rolling either a 6 or 4 on one roll of a dice is two thirds (one sixth plus one sixth because both four and six have a probability of one sixth.