What is the probability of rolling a sum of 7 on a standard pair of six sided dice?

For each of the possible outcomes add the numbers on the two dice and count how many times this sum is 7. If you do so you will find that the sum is 7 for 6 of the possible outcomes. Thus the sum is a 7 in 6 of the 36 outcomes and hence the probability of rolling a 7 is 6/36 = 1/6.

What is the probability of rolling a 7 with two dice?

Probabilities for the two dice

Total Number of combinations Probability
4 3 8.33%
5 4 11.11%
6 5 13.89%
7 6 16.67%

What is the probability of rolling a sum of two on a standard pair of six-sided dice?

The probability of rolling a 2 on a 6-sided dice is 16 . The probability of rolling two 2s on two 6-sided die is, by the multiplication principle, 16×16=136 .

What is the probability of not rolling a sum of 7 with two dice?

Explanation: When rolling 2 dice there are 36 possible outcomes. [to see this imagine one die is red and the other green; there are 6 possible outcomes for the red die and for each of these red outcomes there are 6 possible green outcomes]. That is 30 out of 36 outcomes will not be a 7 total.

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What is the probability of rolling a 2 on a 6 sided die?

Probability of rolling a certain number or less for two 6-sided dice.

Two (6-sided) dice roll probability table.

Roll a… Probability
2 1/36 (2.778%)
3 2/36 (5.556%)
4 3/36 (8.333%)
5 4/36 (11.111%)

What is the probability of rolling a 2 or rolling a 5?

Explanation: There is a 16 probability of getting a 2 on the first roll and a 16 probability of getting a 5 on the second roll.

What is the probability of not rolling a sum of 5?

1 Expert Answer

The rolls that add to five are 1-4, 2-3, 3-2, and 4-1 so there are 4 rolls that add to five. That means there are 32 rolls that do not add to five (because there are 36 total possible rolls).

What is the probability of rolling a sum of 3 on a pair of die?

The results are: Probability of a sum of 3: 1/216 = 0.5% Probability of a sum of 4: 3/216 = 1.4% Probability of a sum of 5: 6/216 = 2.8%

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