**Contents**show

## What is the probability of rolling a 9?

Probabilities for the two dice

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

8 | 5 | 13.89% |

9 | 4 |
11.11% |

10 | 3 | 8.33% |

11 | 2 | 5.56% |

## What is the experimental probability of rolling a sum of 9?

The experimental probability of rolling a sum of 9 is **2/5**. When rolling two number cubes, there are 36 possible outcomes. The theoretical probability of rolling a sum of 9 is 4/36 or 1/9. Since 1/9 is not close to 2/5, the experimental probability is not close to the theoretical probability.

## What is the probability of rolling a pair with 3 dice?

Probability of all three dice the same = 1×1/6×1/6=1/36. Probability of no dice the same = 1×5/6×4/6=20/36. Probability of a pair = 1−1/36−20/36=**15/36**.

## What is the formula of probability?

P(**A**) is the probability of an event “A” n(A) is the number of favourable outcomes. n(S) is the total number of events in the sample space.

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Basic Probability Formulas.

All Probability Formulas List in Maths | |
---|---|

Conditional Probability | P(A | B) = P(A∩B) / P(B) |

Bayes Formula | P(A | B) = P(B | A) ⋅ P(A) / P(B) |

## What is the probability of rolling a total of 2?

Since there are six possible outcomes, the probability of obtaining any side of the die is **1/6**. The probability of rolling a 1 is 1/6, the probability of rolling a 2 is 1/6, and so on.

## What is the probability of rolling standard dice which sum to 9?

When 2 dice are thrown, the probability of the sum being 9 is **1/9**.

## What is the probability of obtaining a value of 9?

For example, if you wanted to know the probability of rolling a 4, or a 7: 3/36 + 6/36 = 9/36.

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Two (6-sided) dice roll probability table.

Roll a… | Probability |
---|---|

6 | 15/36 (41.667%) |

7 | 21/36 (58.333%) |

8 | 26/36 (72.222%) |

9 | 30/36 (83.333%) |

## What is the probability of rolling a 6 with 3 dice?

So, there are 125 out of 216 chances of a 6 NOT appearing when three dice are rolled. Simply subtract 125 from 216 which will give us the chances a 6 WILL appear when three dice are rolled, which is **91**. 91 out of 216 or 42.1 %.

## What is the probability of getting the same number on all three dice?

The probability of getting the same number is **1/6**. Throw the third die. The probability of getting the same number is again 1/6.