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A pair of fair, standard dice are rolled. What is the probability the sum of the dice is 5?

Olpers  Aug 26, 2018

Best Answer 

 #1
avatar+348 
+3

We can make a chart for all the sums:

 

2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 5 4 3 2 1

(The first row is the sum, and the second is the number of ways to get that sum)

 

So as you can see in the chart, the possibilities for rolling a sum of \(5\) is \(4\), and the number of possibilities for any sum is \(36\). This means that your probability would be \(\frac{4}{36} = \frac{1}{9}\).

 

- Daisy

dierdurst  Aug 26, 2018
 #1
avatar+348 
+3
Best Answer

We can make a chart for all the sums:

 

2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 5 4 3 2 1

(The first row is the sum, and the second is the number of ways to get that sum)

 

So as you can see in the chart, the possibilities for rolling a sum of \(5\) is \(4\), and the number of possibilities for any sum is \(36\). This means that your probability would be \(\frac{4}{36} = \frac{1}{9}\).

 

- Daisy

dierdurst  Aug 26, 2018

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