You roll 2 dice. What is the probability that the sum of the dice is greater than 7 and 1 die shows a 2? A 6 X 6 table of dice outcomes will help you to answer this question.

Question

amistre64 · Answer

the results of "one shows a 2

   1 2 3 4 5 6
1    x
2 x x x x x x
3    x
4    x
5    x
6    x

amistre64 · Answer

now weed out the number that add to 7 or less

amistre64 · Answer

1 2 3 4 5 6
1    
2                x
3    
4    
5    
6    x

that leaves us with all that are greater than 7 and one of them is a 2

anonymous · Answer

so its 12/36?

amistre64 · Answer

you count 12 xs in the end?

anonymous · Answer

13/36
 perhaps?

amistre64 · Answer

How many xs do you see in this?

  1 2 3 4 5 6
1    
2                x
3    
4    
5    
6    x

anonymous · Answer

2

amistre64 · Answer

then shouldnt our result be 2 out of 36 ?

anonymous · Answer

yes.

amistre64 · Answer

good; we agree :)

2/36 ; simplify as wanted