Section - 2 Problem - 14

camitava · Posted: Wed Nov 28, 2007 4:40 am Post subject: Section - 2 Problem - 14

Guys need ur opinion and explanation also -

A recent survey of all auto accident victims in Dole County found that, of the severely injured drivers and front-seat passengers, 80 percent were not wearing seat belts at the time of their accidents. This indicates that, by wearing seat belts, drivers and front-seat passengers can greatly reduce their risk of being severely injured if they are in an auto accident.
The conclusion above is not properly drawn unless which of the following is true?
(A) Of all the drivers and front-seat passengers in the survey, more than 20 percent were wearing seat belts at the time of their accidents.
(B)Considerably more than 20 percent of drivers and front-seat passengers in Dole County always wear seat belts when traveling by car.
(C) More drivers and front-seat passengers in the survey than rear-seat passengers were very severely injured.
(D) More than half of the drivers and front-seat passengers in the survey were not wearing seat belts at the time of their accidents.
(E) Most of the auto accidents reported to police in Dole County do not involve any serious injury.

OA after some discussion ...

jan08 · Posted: Sat Dec 01, 2007 2:51 pm Post subject:

I think its D..here is why

The conslusion: "80 percent were not wearing seat belts at the time of their accidents"

this will not be true unless D is true which says

"More than half of the drivers and front-seat passengers in the survey were not wearing seat belts at the time of their accidents. "

Mathematically, D supports the conclusion..

Hope this helps..

sankruth · Posted: Sun Dec 02, 2007 7:21 am Post subject:

IMO its A.

and here is my twisted (hopefully correct) logic...

According to the argument, 20% of people sustained "severe injuries" despite wearing seatbelts. Despite this fact, the argument concludes that wearing seat-belts reduces the risk.

Also, the argument does not explitcitly state if there are pasengers that were not severly injured.

Choice (A) says that in all survey, there were MORE THAN 20% of people wearing seatbelts, which means there were those that were not severly injured and more importantly, they wore seatbelts, thus strengthening the argument!

camitava · Posted: Sun Dec 02, 2007 9:56 pm Post subject:

sankruth, can u pls explain it more clearly? I am not getting it actually. Yop! The OA is A itself. Guys some more input with explanation - I think - needed here...

sankruth · Posted: Sun Dec 02, 2007 10:43 pm Post subject:

camitava · Posted: Mon Dec 03, 2007 12:23 am Post subject:

Thanks a lot, sankruth... Now I have understood.