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有90%的人表示他们认识失业的人。这说明失业率高。
说这句话的roland是傻逼。鉴定完毕。
举个例子来证明这人智商有多低，我们经管学院会计系有200个人，大家都认识，一门考试，只有一个不及格，所以有100%的人认识不及格的人，比90%还高！！！如果我说不及格率高，你不觉得我智商低么?
还有另一个人说的话，还有他的假设，全是扯淡，狗屁不通。
不是说假设是他们平均分布的么、失业集中在一个地方就不行么？我举个例子，就一个地方，50个人，就一个失业，都认识，失业够集中了吧？就集中在一个地方，sharon说的话不照样对么？
我建议出题者回家反省一下自己的智商，为什么我们要为这样一个扯淡的题目复出我们宝贵的时间。以为他有多难，我们不会做，其实是他们的问题。
用一个不相关的数据来证明问题，本身逻辑就有问题，有人反驳也有问题，我们要对用来反驳错误的观点的错误的解释找到一个合理的假设，gmac可以去死了。

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Roland: The alarming fact is that 90 percent of the people in this country now report that they know someone who is unemployed.
Sharon: But a normal, moderate level of unemployment is 5 percent, with one out of 20 workers unemployed.
So at any given time if a person knows approximately 50 workers, one or more will very likely be unemployed.

Sharon's argument relies on the assumption that

(A)    normal levels of unemployment are rarely exceeded
(B)    unemployment is not normally concentrated in geographically isolated segments of the population
(C)    the number of people who each know someone who is unemployed is always higher than 90 percent of the population
(D)    Roland is not consciously distorting the statistics he presents
(E)    knowledge that a personal acquaintance is unemployed generates more fear of losing one's job than does knowledge of unemployment statistics