mneeti wrote:
Hi, could you please elaborate a little more. I am not able to catch the exact point in 'C'.
The explanation you haven for negating 'B' applies to 'C' as well as in even 'C' doesn't talk about the sports cars. So, I am unable to figure out why 'C' is a better option than 'B'.
Hi mneeti
First of all, B and C are totally different in meaning. Let analyze.
B)Many of the vehicles ticketed for drunk driving were ticketed more than once during the time period covered by the report.B is wrong because B only mentions that those who were ticketed for drunk driving will be ticketed again during the time period. But
what if those who were ticketed more than one time are are drivers of other kinds of vehicles, NOT drivers of sport vehicles. If that’s the case, you cannot conclude drivers of sport vehicles drunk more regularly than drivers of other kind of vehicles do.
Hence, B is not the assumption.
C)Drivers who are ticketed for drunk driving are more likely to drive drunk regularly than are drivers who are not ticketed.C means those who are ticketed fro drunk driving are more likely ticketed again.
It does not matter drivers of sport cars or other kind of cars. This is the base for a comparison between the number of ticket/driver of sport cars AND the number of ticket/driver of other kind of cars.
Name “drivers of sport cars” is SET 1, name “drivers of other kind of cars is SET 2.
So,
if the number of ticket/driver of SET 1 is greater than that of SET 2, the conclusion is correct.Let analyze an example:Assume we have 1000 drivers
SET 1 accounts for 2% = 20 drivers
SET 2 accounts for 98% = 980 drivers
Assume we have 100 tickets for drunk driving.
SET 1 accounts for 25% = 25 tickets
SET 2 accounts for 75% = 75 tickets.
Ticket / Driver:20 drivers of sports cars got 25 tickets ==> 1.25 ticket / driver
980 drivers of other kind of cars got 75 tickets ==> 0.07 ticket / driver
Clearly, drivers of sport cars are more likely are more likely to drive drunk regularly than are drivers. Hence, C is the assumption.
Hope it helps.