A pair of dice is rolled. What is the probability that the sum is 5?

Answers

Answer #1 | 18/12 2013 10:36

It's not d because you don't roll a 5 more than 50% of the time.
It's not c because the probability of rolling a 7 is 1/6, and getting a 5 is less likelier than getting a 7, not more likelier.
It's not b because that's 7's probability.
It's not a because... I lied.

Answer #2 | 18/12 2013 15:19

There are 36 possible combinations of two six sided dice... They are...
1 1
1 2
1 3
1 4
1 5
1 6
2 1
2 2
2 3
2 4
2 5
2 6
3 1
3 2
3 3
3 4
3 5
3 6
4 1
4 2
4 3
4 4
4 5
4 6
5 1
5 2
5 3
5 4
5 5
5 6
6 1
6 2
6 3
6 4
6 5
6 6
How many of them add up to 5???
1 4
2 3
3 2
4 1
4 out of 36 combinations have the sum of 5... 4/36 can be simplified down to 1/9...
So the answer is a. 1/9

Answer #3 | 18/12 2013 11:48

1/6. A pair of dice is 2 dice. Each dice has a 5 on it out of 6. 6 x 2 is 12. and 2 5's out of those 12 numbers gives you 2/12. Simplify that by dividing 2/12 which gives you 1/6. The answer is B.

Answer #4 | 18/12 2013 18:04

Good Lord, folks! This wasn't all that hard!
"Best Answer" to HONORARIUM. He's the only one who got it right.
1/9 is the answer.

Answer #5 | 20/12 2013 09:42

4/36 reduced is 1/9.

Answer #6 | 21/12 2013 16:02

4 ways out of 36 (1/9)

Answer #7 | 21/12 2013 12:03

a combination of 5 can be reached four ways, 1&4, 4&1, 2&3 and 3&2.
There are a total of 36 possible combinations when rolling 2 dice.
therefore, 4/36, or 11.1% of the time a five will be rolled. this equates to 1/9.

Answer #1| 18/12 2013 10:36