您还没有登录,登录以后才可以查看答疑和进行提问。

试题详情

In a survey, 100 travel agents each ranked Airlines A,B and C in order of preference. Each of the 100 travel agents also rated the three airlines in five categories on a scale of 1 through 10, with 10 being the best rating.
Airline B's average rating for convenience was approximately what percent greater than Airline A's average rating for convenience?
答案:D

专业教师答疑

问个问题