2. 职称英语
  3. [img]2014m9x/ct_egreqm_egreqbj_0056_20148[/img] [br] DIn this question, you are

[img]2014m9x/ct_egreqm_egreqbj_0056_20148[/img] [br] DIn this question, you are

游客2025-02-24  47
问题 [br]
选项
答案 D
解析 In this question, you are asked to compare the 75th percentiles of the incomes of two groups of college graduates six months after graduation. The only information you are given is that the median income of the group in Quantity A is $3,000 greater than the median income of the group in Quantity B.
   Recall that the median of a group of numbers is the middle number(or the average of the two middle numbers)when the numbers are listed from least to greatest. The median is also equal to the 50th percentile. The median does not indicate anything about the spread of the numbers in the group. In particular, for each group of incomes, you do not know how much greater than the median the 75th percentile of the group of incomes is, nor do you know the relationship between the 75th percentiles of the two groups. Since the relationship between Quantity A and Quantity B cannot be determined, the correct answer is Choice D.
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