Experimental Probability

[Danielita]

If you roll a pair of dice there are 36 equally likely outcomes for the numbers of spots on the top faces. For instance, the first could be 5 and th second 3. The sum of the numbers is what people are usually interested in.
a)Write an ordered pair for each possible outcome.
b)Figure out how many outcomes produce a total of 2, how many produce a total of 3 and so forth, all the way to a total of 12.

 

[Gene]

Think of one red and one green die.
The ordered pairs would be (r,g)
(1,1) (1,2) (1,3) ...
(2,1) (2,2) (2,3) ...
(3,1) (3,2) (3,3) ...
...

Then just count how many give that total.
There is only one (1,1) for two.
There two (1,2) & (2,1) for three.
etc.