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03 Jul 2019, 04:15
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
63% (01:48) correct
37%
(02:06)
wrong
based on 778
sessions
History
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In 1990, the number of new students admitted to Ph.D. programs each year averaged 1,250 students per university, while the total number of Ph.D. students enrolled averaged 7,500 students per university. By 2000, the number of new students admitted to Ph.D. programs each year had fallen to an average of 900 students per university, while the total number of Ph.D. students enrolled averaged 8,100 students per university.
Which of the following conclusions is most strongly supported by the statements above?
A. The total number of students enrolled in Ph.D. programs increased from 1990 to 2000.
B. The average length of time a student remained enrolled in a Ph.D. program increased between 1990 and 2000.
C. The percentage of applicants accepted by Ph.D. programs declined from 1990 to 2000.
D. The number of universities remained constant from 1990 to 2000.
E. The demand for Ph.D. degrees declined from 1990 to 2000.
Which of the following conclusions is most strongly supported by the statements above?
A. The total number of students enrolled in Ph.D. programs increased from 1990 to 2000.
B. The average length of time a student remained enrolled in a Ph.D. program increased between 1990 and 2000.
C. The percentage of applicants accepted by Ph.D. programs declined from 1990 to 2000.
D. The number of universities remained constant from 1990 to 2000.
E. The demand for Ph.D. degrees declined from 1990 to 2000.
05 Jul 2019, 06:41
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Quote:
The right answer here should be B. Since this is an inference based CR question, the main thing we are looking to do is to select a conclusion that MUST be true. The best way to do this is to eliminate all answers that can be false, since the correct answer CANNOT be false.
A - We only know the number of PhDs per university. It is very possible that the number of unis increased OR decreased. Hence, we cannot make definitive reliable claims about the total number of PhDs. OUT
B - The number enrolled per university per year has dropped, but the total number per university has increased. This is only possible if fewer people complete their PhDs than the number of new admissions. If people are not completing their PhDs at the same rate, it MUST be the case that on average, students are taking longer than they did before. CORRECT
C - We don't even know about all the applicants, only the ones who were admitted. If fewer candidates were admitted in total, it may be tempting to think a lower percentage were admitted. But it could very much be the case that fewer candidates applied to begin with. OUT
D - We don't know anything about this at all, since all data is on a per university basis. OUT
E - Demand refers to number of applicants, and as we addressed in C, we don't know what happened to that number. OUT
- Matoo
General Discussion
Deepakjhamb
Joined: 29 Mar 2020
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03 May 2020, 22:35
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B. The average length of time a student remained enrolled in a Ph.D. program increased between 1990 and 2000
In B statement the average length of time student remained enrolled is compared for between 1990 and 2000 and what else . There is no comparison marker here . So this question is ambiguous . You can't compare with normally someone completes in specified time
In B statement the average length of time student remained enrolled is compared for between 1990 and 2000 and what else . There is no comparison marker here . So this question is ambiguous . You can't compare with normally someone completes in specified time
