If a pair of dice (one red; the other blue) are rolled,

Find the probability of landing on a sum of 9

Out of 36 possibilities, you could get:

6, 3
3, 6
4, 5
5, 4

If a pair of dice (one red; the other blue) are rolled,

Find the probability of landing on at least one odd number

To find the probability of landing on a sum of 9 when rolling two dice, we can start by determining the total number of possible outcomes when rolling two dice. Each die has six faces, so the total number of outcomes is 6 multiplied by 6, which equals 36.

Next, we need to count the number of outcomes that result in a sum of 9. We can do this by listing all the possible combinations that give us a sum of 9:

1 + 8
2 + 7
3 + 6
4 + 5
5 + 4
6 + 3
7 + 2
8 + 1

So, there are 8 different combinations that result in a sum of 9.

Therefore, the probability of landing on a sum of 9 when rolling two dice is 8 out of 36, which simplifies to 2/9 or approximately 0.2222.