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## How many ways can get sum of 5 when you roll two dice at the same time?

We can get a sum of 5 in **two different combinations** also: (1,4) and (2,3). Why is it that in de Mere’s practice 5 appears more often than 4?

## How do you find the probability of rolling two dice?

If you want to know how likely it is to get a certain total score from rolling two or more dice, it’s best to fall back on the simple rule: **Probability = Number of desired outcomes ÷ Number of possible outcomes.**

## What is the ratio of rolling a 2 to rolling a 5?

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 getting a sum of 3 in rolling two dice?

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 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**.