2. 外语
  3. The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are

The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are

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问题 The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether
   Ａ.  Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
   Ｂ.  Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
   Ｃ.  BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
   Ｄ.  EACH statement ALONE is sufficient.
   Ｅ.  Statements (1) and (2) TOGETHER are NOT sufficient.
Do at least 20 percent of the people in country X who are over the age of 25 possess a college diploma?
   (1) In country X, among the population over the age of 25, 26 percent of the male population and 16 percent of the female population possess college diplomas.
   (2) In country X, women account for 55 percent of the total population.
选项
答案E
解析 is insufficient because it does not tell what percentage of the population over 25 is female; if the gender split is 50/50, then the answer to the question is "yes," if the gender split is 25/75 with more females, then the answer is "no." (2) alone is insufficient, and although it appears to address the insufficiency in statement (1), it actually does not, because we cannot infer that the gender split for the total population is the same as the gender split for the population over 25.
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