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标题: og-157 [打印本页]

作者: summersmile    时间: 2005-2-15 12:37
标题: og-157

Companies O and P each have the same number of employees who work the same number of hours per week.



According to records maintained by each company, the employees of Company O had fewer job-related accidents last year than did the employees of Company P. Therefore, employees of Company O are less likely to have job-related accidents than are employees of Company P.



157.


Which of the following, if true, would most weaken the conclusion above?



(A) The employees of Company P lost more time at work due to job-related accidents than did the employees of Company O.



(B) Company P considered more types of accidents to be job-related than did Company O.



(C) The employees of Company P were sick more often than were the employees of Company O.



(D) Several employees of Company O each had more than one job-related accident.



(E) The majority of job-related accidents at Company O involved a single machine.



B is the best answer.



The data used to support the conclusion come from the companies’ own records. Since, however, choice B indicates that, as compared with Company O, Company P tends to overstate the number of job-related accidents, choice B weakens the conclusion drawn and is the best answer.



1Choice A does not weaken the conclusion, but is simply a consequence that would be expected given the data. 2The relevance of employees’sicknesses (choice C) cannot be assessed without information about the links, if any, between sickness and job-related accidents. 3Choices D and E both give reasons for predicting a smaller likelihood that any arbitrary employee of Company O will have a job-related accident, and thus support the conclusion.



不明白关于D、E的解释?牛牛指教!谢谢!







作者: jones79    时间: 2005-3-30 21:52

感觉d.e都是无关选项怎么是支持结论的呢,不明白


作者: jones79    时间: 2005-3-30 21:59

根据og解释理解是涉及出事故的工人越少和机器越少,就表明工人出事故的可能性越小,不知道这样理解对不对


作者: 淡蓝色的回忆    时间: 2005-11-20 23:18

我也有同样的问题,请NN指教。


作者: yhq110    时间: 2006-3-15 07:28
感觉D、E只说了O公司的情况,没有提供任何有关P公司的情况,根本不涉及到O、P两公司的对比,所以应该是无关选项啊,搞不懂怎么能支持结论呢盼NN能指点迷津
作者: orange2005    时间: 2006-3-15 15:52
以下是引用summersmile在2005-2-15 12:37:00的发言:


157.




(D) Several employees of Company O each had more than one job-related accident.



(E) The majority of job-related accidents at Company O involved a single machine.





Choices D and E both give reasons for predicting a smaller likelihood that any arbitrary employee of Company O will have a job-related accident, and thus support the conclusion.



不明白关于D、E的解释?牛牛指教!谢谢!







D和E对原题的结论是有明显的支持作用。

D选项可以这样来解:
比如说,O公司总体员工的素质都相当好、从来不犯错误(就象我们这类~~),只有一个“捣蛋鬼”--他每天上班就会捣蛋、制造accident。这样,去年一年下来,O公司所有的accident都是那个“捣蛋鬼”干的。而P公司呢?总体员工的素质不怎么滴,就当他们全是农民吧--他们经常犯错误。所以,去年一年下来,P公司累计的accient就比O公司多了。
好了,到了今年,O和P两家公司正好都要派人出差,O公司正好把那个“捣蛋鬼”派出去,派到西伯利亚去考察;而P公司也派了一个农民去那里测量西北风~~现在,我们再来看看两家公司的局势:O公司剩下的员工就全是优秀的员工了--他们从来不犯错误;而P公司剩下的还是一帮农民--他们还是会经常犯错误。--》所以就支持了题中的结论。

同样的道理,也可以解释E选项,因为D和E在逻辑上来说,本质是一样的(大家要不要自己试着解释一下?~~)。


[此贴子已经被作者于2006-3-15 15:54:34编辑过]

作者: orange2005    时间: 2006-3-15 15:57
以下是引用jones79在2005-3-30 21:59:00的发言:

根据og解释理解是涉及出事故的工人越少和机器越少,就表明工人出事故的可能性越小,不知道这样理解对不对



没错。如果真要详细计算的话,会涉及到“概率论”方面的问题。有兴趣的话可以找本初等数学的书看看~~


作者: sigrid920    时间: 2006-10-18 04:22

橙子兄弟真是幽默啊~~喜欢看你的回帖, 不知道你现在杀G成功没有,是不是还在CD上, 若在的话,请多帮我们这些菜菜解答点问题, 让我们在复习GMAT的枯燥乏味之余也乐呵乐呵


作者: KATIEUS    时间: 2006-11-17 20:30
orange2005
    

 


作者: KATIEUS    时间: 2006-11-17 20:33

yhq110

YOU ARE RIGHT


作者: zt_lby    时间: 2007-10-4 06:05
以下是引用orange2005在2006-3-15 15:57:00的发言:

没错。如果真要详细计算的话,会涉及到“概率论”方面的问题。有兴趣的话可以找本初等数学的书看看~~

说的不错! 橙子老哥!


作者: sandy07627    时间: 2008-6-27 09:40

脑子实在是转不过来,为啥 company p tends to overstate the number of job-related accidents 啦?

NN们给个例子好吗?


作者: 玫牡昙    时间: 2009-2-7 11:14
那为什么选项b就能weaken the conclusion呢?nn~
作者: 伯爵奶茶    时间: 2009-5-5 10:34
两个公司对于job-related accident的标准不一样。  标准不一样,就没有比较的前提。
作者: 差点儿要事业    时间: 2016-12-30 17:16
本题显然是类比推理,需要找O和P的对比。DE选项都不涉及两者对比,只说了O的情况并没有指出P的情况。B选项首先涉及到了OP对比,意思是说P统计的事故种类多了,把一些轻微的事故都计算在内了(比如工人被机器夹了手但是没受伤,P就认为是一次事故,但可能O认为工人没受伤可以忽略不计),所以最后的事故总数比O的大。但实际上工人工作的环境可能一样甚至O的更危险,只是O隐瞒了一些事故。




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