Question 70413
Draw the probability tree for one dice first. There are 6 possible numbers which can come up so your tree will have 6 branches. That dice is now finished with. Now for each of the branches you have look at the possible outcomes with the second dice. It can also have 6 possible numbers so add a new brach to each of the six branches you already have. This will give six possible outcomes on each of the six branches you already have for a total of 36 possible outcomes.
To find the probability of a 2 and a 3 see how many branches of the tree will give this combination. There should be 2 ways this can happen (first dice 2 and second dice 3 OR first dice 3 and second dice 2). Counting up the total number of branches gave 36 so 2 out of 36 possible outcomes give a 2 and a 3. The probability will therefore be {{{2/36}}} which simplifies to {{{1/18}}}.