sheshadritalla wrote:
Hi,
I am not satisfied with the
OG explanation, could any one please explain me.
A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar detectors, thirty-three 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 exceed the speed limit regularly than 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 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.
Thanks & regards,
Sheshadri
hi,
not one of the best of the Qs in
OG...
But we can get to the answer choice,..
lets see with numbers..
total 1000 drivers, out of which 30 have radar detectors installed in their vehicles..
Vehicles ticketed for over speeding... say 66 vehicles..
22 out of 30 with detectors ticketed, whereas 44 out of 970 of others detected..
conclusion :- drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.
One should know what is the use of
radar detector...
It is to enable the motorists to reduce the speed, as the radar picks up the speed detector placed by police. So, logically they should reduce their speed, after realizing the presence of speed detector..
But the conclusion states the opposite that these drivers get ticketed, even after having radar detector..
Ofcourse there can be reason such as tech advancement not to get detected by radars and drivers getting caught unaware of this technological advancement..
we are asked to connect the conclusion with some assumption..
regularly' is the catch to some extent.. the drivers who are ticketed are prone to increase the speed inspite of presence of detectors in the car..(They love to live on the edge
)..
so B could be an assumption...
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