A recent report determined that although only 3percent of drivers on Maryland
highways equipped their vehicles with radar detectors, 33 percent of all
vehicles ticketed for exceeding the speed limit were equipped with them.
Clearly, drivers who equip their vehicles with radar detectors are more likely
to exced the speed limit regularly thatn are drivers who do not.
The conclusion drawn above depends on which of the following assumptions?
a. Drivers who equip their vehicles with radar detectors are less likely to be
ticketed for exceeding the speed limit than are drivers who do not
b. drivers who are ticketed for exceeding the speed limit are more likely to
exceed the speed limit regularly than are drivers who are not ticketed.
c. The number of vehicles that were ticketed for exceeding the speed the 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.
Ans: B
這題我想了很久，還是不明白為什麼要選B
我的思路是以下
題目的結論是有裝detector的人比較容易regularly的超速
問作者是基於那個assumption這麼說
a.說的是有裝detector的人比沒裝的人較不容易接到罰單
-這個跟作者的結論相反所以不選
b.接到罰單的人通常都是愛超速的人
-跟題目有一些關聯，我保留
c.跟題目說的也沒有什麼關係而且他把不同類的事件拿來比較，我也第一步就刪掉
d.感覺跟題目有關聯，我也保留
e.扯到別的state去了，直接刪
最後剩下B, D決選
我選了D
請問我應該要怎麼解這種問assumption的問題??
我看完答案後猜會選B的原因是因為B說會接到罰單的人通常都是常超速的人
因為他們常超速，所以才會裝detector所以結論是裝detector的人都是愛超速的人
但這是我在看完答案後才知道要這樣去解釋，如果不看答案我就會選錯
不知道有沒有戰友可以提供更好的思路?
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