If you roll two number cubes and add the results, which is more likely, getting an even sum or getting an odd sum? Explain

1 + 1

1 + 2

1 + 3

1 + 4

1 + 5

1 + 6

2 + 2

2 + 3

2 + 4

2 + 5

2 + 6

3 + 3

3 + 4

3 + 5

3 + 6

4 + 4

4 + 5

4 + 6

5 + 5

5 + 6

6 + 6

9 odd 12 even 9/12

1 2 3 4 5 6

1 2 3 4 5 6 7 even numbers: 18

2 3 4 5 6 7 8

3 4 5 6 7 8 9

4 5 6 7 8 9 10 odd numbers: 18

5 6 7 8 9 10 11

6 7 8 9 10 11 12

There is an equal number of odd and even sums. If you make this probability chart, you can prove that there are an equal likeliness to receiving an odd number to an even number.