I'm not sure if anyone can help, but I need to find the probability for each sum of dice...

"Using the sample space for tossing 2 dice, construct a probability distribution for the sums 2 through 12. Input answers as reduced fractions.

X

2 3 4 5 6 7 8 9 10 11 12

P(x)

? ? ? ? ? ? ? ? ? ? ?"

I know I probably could count the possibilities but is there a formula for this? I'm having a difficult time coming up with a decent formula that works....thank you

Question

I'm not sure if anyone can help, but I need to find the probability for each sum of dice...

"Using the sample space for tossing 2 dice, construct a probability distribution for the sums 2 through 12. Input answers as reduced fractions.

X

2 3 4 5 6 7 8 9 10 11 12

P(x)

? ? ? ? ? ? ? ? ? ? ?"

I know I probably could count the possibilities but is there a formula for this? I'm having a difficult time coming up with a decent formula that works....thank you

anonymous · Answer

Check this page out, it gives a matrix of all possible dice rolls http://www.math.hawaii.edu/~ramsey/Probability/TwoDice.html

anonymous · Answer

@loremipsum

anonymous · Answer

I know that the sum of 5 is 1/9 because there are 4 possibilities, 1+4,4+1, 2+3, 3+2. 

What's the formula that follows this pattern?

anonymous · Answer

@ehuman

anonymous · Answer

Looks like I found a helpful website: http://wizardofodds.com/gambling/dice/