- There are (6 x 6) = 36 possible results of rolling 2 dice.
- There are 27 outcomes where the product is an even number:
1 - 2, 1 - 4, 1 - 6
2 - 1, 2 - 2, 2 - 3, 2 - 4, 2 - 5, 2 - 6
3 - 2, 3 - 4, 3 - 6
4 - 1, 4 - 2, 4 - 3, 4 - 4, 4 - 5, 4 - 6
5 - 2, 5 - 4, 5 - 6
6 - 1, 6 - 2, 6 - 3, 6 - 4, 6 - 5, 6 - 6
- The probability of success is 27/36 = 75%
- The odds are 3 to 1 in favor.
The nice thing about calculations with 2 dice, is it's fairly simple to tally up the results on a table (6 x 6 = 36 entries). But for more complex problems, a formula is much easier. Here's how to develop a formula for this problem:
If either one or both of the dies have an even number, the product will be even. It's easier to figure probability of not getting even, then subtract from 1. Both dies must have an odd number for this to occur. So P1odd = ½ and P2odd = ½. Since both event have to occur, we multiply them together: (½)(½) = ¼. So the chances of getting an odd product is ¼, or 25%. The chance of getting even is (1 - ¼), which is ¾, or 75%.
1 in 6.
2
The probability of rolling an even number is 1/2.
1 out of 6.
Prob(Rolling a number greater than 2) = 1 - Prob(Not rolling a number greater than 2 on either die) = 1 - Prob(Rolling a number less than or equal to 2 on both dice) = 1 - Prob(Rolling a number less than or equal to 2 on a die)2 = 1 - (1/3)2 = 8/9
Rolling a dice and getting an even number is an outcome. It is the result of rolling a dice.
The odds of rolling a specific number on a six-sided dice are 1 in 6.
The probability of rolling the same number on five dice is (1/6)4, or about 0.0007716.
1 in 6.
With one roll of three dice, the probability is 7/8.
For 6 sided dice, there is only 1 way to get a 2: (1,1). There are 36 outcomes rolling 2 dice; so the probability of rolling two numbers whose sum is 2 is 1/36.
2
The answer depends on how many dice are in the SET of dice.
The odds of rolling any double number is 1:36
The probability is 11/36.
3/11
The probability of rolling an even number is 1/2.