GetThisDone wrote:
On average, the number of speeding tickets issued in County X every year is three times greater than the number of speeding tickets issued in County Y during the same period. Therefore, the number of people who exceed the speed limit must be higher in County X than in County Y. Which of the following describes a flaw in the reasoning above?
A) The argument fails to take into account that the speed limit may be different in the two counties.
B) The argument fails to take into account that the number of tickets issued in County X may reflect a lower proportion of drivers overall in that county.
C) The argument fails to take into account that a single driver can receive more than one ticket in a given year.
D) The argument fails to take into account that residents of County Y may be more law-abiding overall.
E) The argument fails to take into account that residents of County X may not be aware of the speed limit in that county.
Main CR Qs link - Main link -
https://gmatclub.com/forum/cr-qs-600-700 ... 31508.htmlOFFICIAL EXPLANATION
The author concludes that the number of people who exceed the speed limit in County X must be higher than the number who exceed the speed limit in County Y on the grounds that the number of tickets issued in County X is higher. The author wrongly assumes that every ticket corresponds to a different individual. It is possible, for example, that a handful of people routinely exceed the speed limit and are thus responsible for a disproportionate share of the tickets issued in the county.
(A) Any difference in speed limits is irrelevant to the conclusion.
(B) The conclusion is about actual numbers, not percentages.
(C) CORRECT. This points out the author's unwarranted assumption that every ticket corresponds to a different individual.
(D) Whether the residents of County Y break other laws is irrelevant to this specific issue.
(E) Whether the residents of County X are aware that they are exceeding the speed limit is irrelevant to this specific issue.
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