List the possibilities
How many different possible sums can you make by rolling two cubes? How many possible combinations are there for each sum? For example, the possible combinations for a sum of seven are: 1+6, 6+1, 3+4, 4+3, 2+5, and 5+2. Therefore, there are 6 possible ways to get a sum of 7.
Make a histogram or frequency distribution graph to show your work. If necessary, review with your teacher how to make a histogram or frequency distribution graph.