If we consider three 20 sided dice, the chance of rolling 15 on each of them is: P = (1/20)³ = 0.000125 (or P = 1.25·10⁻⁴ in scientific notation). And if you are intereseted in rolling the set of any identical values, simply multiply the result by the total die faces: P = 0.000125 * 20 = 0.0025 .

## When 2 dice are rolled what is the probability that the sum of the numbers is at least 10?

If you consider the chart on the webpage given, there are 36 combination of rolls you can get from two dice. When you consider the sum being 10, there are only 3 combinations. So, the probability of getting a 10 would be **3/36 = 1/12**.

## What are the odds of rolling a 6 with 2 dice?

When you roll two dice, you have a **30.5 % chance at least one 6** will appear. This figure can also be figured out mathematically, without the use of the graphic.

## What is the probability of rolling a sum of 4?

Probabilities for the two dice

Total | Number of combinations | Probability |
---|---|---|

2 | 1 | 2.78% |

3 | 2 | 5.56% |

4 | 3 |
8.33% |

5 | 4 | 11.11% |

## What is the probability of 3 dice?

Two (6-sided) dice roll probability table

Roll a… | Probability |
---|---|

3 | 3/36 (8.333%) |

4 | 6/36 (16.667%) |

5 | 10/36 (27.778%) |

6 | 15/36 (41.667%) |

## What is the formula for calculating probability?

**How to calculate probability**

- Determine a single event with a single outcome.
- Identify the total number of outcomes that can occur.
- Divide the number of events by the number of possible outcomes.

## What is the probability of rolling a 7 or 11 with two dice?

What about 7 OR 11? There are 6 x 6 or 36 options, all are equally likely, 7 occurs 6 times, so the chances are 6/36 or 1/6. 11 occurs 2 times so chances are **2/36 or 1/18**. 7 or 11 are 8 of the 36 options so 8/36 or 2/9.

## What is the probability of rolling a sum less than 10?

That totals 8 combination out of 36 that could be ten or higher, so 8/36= 2/9. since I wanted less than ten 1-(2/9) = **7/9** probability of getting less than 10.

## What is the probability of getting a multiple of 2 in rolling a die?

So, probability of rolling a multiple of 2 with one toss of a number cube is **1/3**.

## What is the probability of getting a sum of 7 when rolling two 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**.