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## When two dice are rolled find the probability that the sum is either 7 or 11?

2 Answers. The probability is **25%** .

## What is the probability of getting a 7 when rolling 2 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 that you obtain a sum of 7 or a sum of 11?

For example, since a 7 or an 11 is a winner on the first roll and their probabilities are 6/36 and 2/36, the probability of winning on the first roll is 6/36+2/36=**8/36**.

## What is the probability of rolling a 7 or 10?

Two (6-sided) dice roll probability table

Roll a… | Probability |
---|---|

7 | 21/36 (58.333%) |

8 | 26/36 (72.222%) |

9 | 30/36 (83.333%) |

10 | 33/36 (91.667%) |

## What is the probability of winning a game of craps?

For example, since a 7 or an 11 is a winner on the first roll and their probabilities are 6/36 and 2/36, the probability of winning on the first roll is 6/36+2/36=**8/36**.

## What is the probability of getting the same number?

The probability of getting the same number is **1/6**.

## What is the probability of not rolling a 7?

With the help of a calculator we find that we will not get a total of 7 on any of the first 10 rolls approximately **16.15%** of the time. This implies that we will get a total of 7 on at least one of the first 10 rolls 100%−16.15%=83.85% of the time.