标题: 求解OG--12--78 [打印本页] 作者: zhongyaya 时间: 2009-11-24 22:01 标题: 求解OG--12--78 A recent report determined that although only 3 percent of drivers on Maryland highways equipped their vehicles with radar detectors,33 percent of all vehicles ticketed for exceeding the spend limit were equipped with them.Clearly ,drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.
(A) Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who are not ticked.
(B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than the drivers who are not ticketed.
(C) The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors .
(D) Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.
(E) Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.
OG上对A的解释是 While this statement about being ticketed may be true,the conclusion pertains to the recurrent exceeding of the speed limit ,so this statement is not relevant. 我做的时候是把A 当做weaken来看的，不明白为啥答案是ir 作者: ralachen 时间: 2009-11-25 16:46
我觉得A讲的是被罚的可能性 而题目的结论讲的是频率，说装了radar detectors的司机更有可能经常性超速作者: zhongyaya 时间: 2009-11-25 22:01
是这样啊~谢谢罗作者: zhongyaya 时间: 2009-11-25 22:04
巨汗~问题都没打上去~ The conclusion drawn above depends on which of the following assumptions ? 答案是B
