这个只能把结果一一列举这么做是吧？

问题如下：

Question When rolling two six-sided dice and summing their outcomes, which of the following sums is most likely to occur?

选项：

A.Nine B.Five C.Six

解释：

Solution

C is correct. This scenario provides an example of a discrete random variable. The paired outcomes for the dice are indicated in the following table. The outcome of the dice summing to six is the most likely to occur of the three choices because it can occur in five different ways, whereas the summation to five and nine can occur in only four different ways.

B is incorrect. The dice summing to five can occur in four ways, which is less than the number of ways for the dice summing to six.

A is incorrect. The dice summing to nine can occur in four ways, which is less than the number of ways for the dice summing to six.