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Two fair 6-sided dice are rolled. What is the probability the sum rolled is 9?

 Jan 24, 2018
 #1
avatar+102422 
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There are 36 possible outcomes

 

Number       Number  of Possible Ways

2                           1

3                           2

4                           3

5                           4

6                           5

7                           6

8                           5

9                           4

.......

 

So......the probability of a "9"  is    4 / 36  =   1  / 9

 

 

cool cool cool

 Jan 24, 2018

10 Online Users