Final answer:
To estimate the number of times a sum of 9 would be observed when rolling two dice, we need to consider the possible outcomes. Out of the 36 possible outcomes, 4 of them result in a sum of 9.
Step-by-step explanation:
To estimate the number of times we would observe a sum of 9, we need to look at the possible outcomes when two dice are rolled. There are 36 possible outcomes when rolling two dice (6 possible outcomes on the first die multiplied by 6 possible outcomes on the second die). Out of these 36 outcomes, there are 4 outcomes that result in a sum of 9: (3,6), (4,5), (5,4), and (6,3).
Therefore, we can estimate that we would observe a sum of 9 approximately 4 out of 36 times when rolling two dice.