单选题
In a traditionally drawn decision tree, a circle represents______. A) a chance to which no estimated monetary value can be assigned so that a likely pay-off can not be shown B) a decision to which no estimated monetary value can be assigned so that a likely pay-off can not be shown C) a chance to which an estimated monetary value may be assigned to calculate the most likely pay-off D) a decision to which an estimated monetary value may be assigned to calculate the most likely pay-off
【正确答案】
C
【答案解析】[解析] 在传统的决策树图案中，一个圆圈代表______。 A) 一个机会，没有被分配EMV所以不能计算最可能的回报 B) 一个决策，没有被分配EMV所以不能计算最可能的回报 C) 一个机会，被分配一个EMV用来计算最可能的回报 D) 一个决策，被分配一个EMV用来计算最可能的回报 这里的圆圈就是决策树中的某个路径，代表一个机会。