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CR demographers doing research

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CR demographers doing research [#permalink]

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ANswer with explanation please. Thanks

Demographers doing research for an international economics newsletter claim that the average per capita income in the country of Kuptala is substantially lower than that in the country of Bahlton. They also claim, however, that whereas poverty is relatively rare in Kuptala, over half the population of Bahlton lives in extreme poverty. At least one of the demographers’ claims must, therefore, be wrong.
The argument above is most vulnerable to which of the following criticisms?
(A) It rejects an empirical claim about the average per capita incomes in the two countries without making any attempt to discredit that claim by offering additional economic evidence.
(B) It treats the vague term “poverty” as though it had a precise and universally accepted meaning.
(C) It overlooks the possibility that the number of people in the two countries who live in poverty could be the same even though the percentages of the two populations that live in poverty differ markedly.
(D) It fails to show that wealth and poverty have the same social significance in Kuptala as in Bahlton.
(E) It does not consider the possibility that incomes in Kuptala, unlike those in Bahlton, might all be very close to the country’s average per capita income.
[Reveal] Spoiler: OA

Last edited by ankurgupta03 on 13 Apr 2014, 03:17, edited 1 time in total.
added the OA
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Re: CR demographers doing research [#permalink]

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New post 13 Mar 2008, 09:45
E

[AI] of [K] - the average per capita income in the country of Kuptala:
[AI] of [B] - the average per capita income in the country of Bahlton:

[P] of [K] - % people living in poverty in the country of Kuptala:
[P] of [B] - % people living in poverty in the country of Bahlton:

1st claim: [AI] of [K] << [AI] of [B]
2st claim: [P] of [K] ~ 0, [P] of [B] = 50%

The explanation of these visible disparity destroy conclusion: "one of the claims must be wrong"

Only E fully explains that: "It does not consider the possibility that incomes in Kuptala, unlike those in Bahlton, might all be very close to the country’s average per capita"
In other words, there are a few billionaires in Bahlton
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Re: CR demographers doing research [#permalink]

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New post 13 Mar 2008, 11:36
I chose E also. Statement E says that the incomes in Kaptula could be close to the median, and the per capita incomes in Bahlton are more disbursed with lower lows and higher highs.
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New post 13 Mar 2008, 12:21
thanks. the OA is E by the way
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Re: CR demographers doing research [#permalink]

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New post 04 Aug 2011, 05:53
Good question.
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Re: CR demographers doing research [#permalink]

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New post 04 Aug 2011, 15:29
+1 E
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Re: CR demographers doing research [#permalink]

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New post 12 Apr 2014, 13:32
Hi,
Could anyone please explain what's wrong with option (b).
If the term poverty doesn't has a universally accepted meaning and thus, in both nations, poverty has a different meaning, then may be in bahlton people who are referred to be living in extreme poverty, they are of the same economical level as people who are considered poor in kuptala.
Though option (e) is also right but I was mainly confused between these two options...
Thanks in advance!!

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Re: CR demographers doing research [#permalink]

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Vavali wrote:
ANswer with explanation please. Thanks

Demographers doing research for an international economics newsletter claim that the average per capita income in the country of Kuptala is substantially lower than that in the country of Bahlton. They also claim, however, that whereas poverty is relatively rare in Kuptala, over half the population of Bahlton lives in extreme poverty. At least one of the demographers’ claims must, therefore, be wrong.
The argument above is most vulnerable to which of the following criticisms?
(A) It rejects an empirical claim about the average per capita incomes in the two countries without making any attempt to discredit that claim by offering additional economic evidence.
(B) It treats the vague term “poverty” as though it had a precise and universally accepted meaning.
(C) It overlooks the possibility that the number of people in the two countries who live in poverty could be the same even though the percentages of the two populations that live in poverty differ markedly.
(D) It fails to show that wealth and poverty have the same social significance in Kuptala as in Bahlton.
(E) It does not consider the possibility that incomes in Kuptala, unlike those in Bahlton, might all be very close to the country’s average per capita income.


Responding to a pm:

Let's understand the argument:

"Demographers doing research for an international economics newsletter claim that the average per capita income in the country of Kuptala is substantially lower than that in the country of Bahlton." -
Say average per capita income of K is $10,000
Say average per capita income of B is $40,000

"They also claim, however, that whereas poverty is relatively rare in Kuptala, over half the population of Bahlton lives in extreme poverty. At least one of the demographers’ claims must, therefore, be wrong."

This is possible with the numbers given above, right? Say, poverty is defined as < $5000. Say, most people in K earn $10,000. Very few are less than $5000 and very few are above $15000. Say most people lie close to the average.
On the other hand, it is possible that 80% of people in B earn only $1000. Then the rest of the 20% must have very high income i.e. say $150,000. In that case, even though average per capita income would be relatively higher, most of the population would be below poverty line.

"At least one of the demographers’ claims must, therefore, be wrong."

This is incorrect conclusion. It is not necessary that at least one of the demographers’ claims must be wrong as we showed above with some numbers.

The argument above is most vulnerable to which of the following criticisms?
(E) It does not consider the possibility that incomes in Kuptala, unlike those in Bahlton, might all be very close to the country’s average per capita income.

This is exactly what we thought. Incomes in K might be very close to the country's average so that very few people have less than average income (or below poverty line) whereas the gap between in incomes in B might be very high such that many people fall below the poverty line.

Hence (E) is the answer.
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Re: CR demographers doing research [#permalink]

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Can anyone please explain why option A is incorrect.
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suhaschan wrote:
Can anyone please explain why option A is incorrect.


Could you first explain why you feel (A) is correct? Is it because of the complicated language? If you come across such an option, you should skip to others to figure out if you have a clear winner in others. They use complicated language only to play with your mind. Don't get bogged down by it. Read it carefully and analyze it, if you must.

The conclusion says: At least one of the demographers’ claims must, therefore, be wrong.

The two claims are
Claim 1: average per capita income in Kuptala is substantially lower than that in Bahlton
Claim 2: poverty is relatively rare in Kuptala, over half the population of Bahlton lives in extreme poverty

Option (A) says: "It rejects an empirical claim about the average per capita incomes in the two countries without ..."
Option (A) says: "It rejects claim 1 without ..."

Does the conclusion reject claim 1? No, not at all! It says one of the two must be wrong. It doesn't reject either one.

So option (A) is wrong.
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Re: CR demographers doing research [#permalink]

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New post 05 Nov 2014, 05:04
can someone please throw light on option "C " :roll: .
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New post 10 Nov 2014, 21:27
vijaykumar1299 wrote:
can someone please throw light on option "C " :roll: .


The 'actual number of people living in poverty' has no relevance for our argument. We are discussing the percentage of population living in poverty and comparing that (which makes sense) - the 'actual number of people living in poverty' is not a comparable number and doesn't give any information about relative levels of poverty in the two countries. Hence, the actual number of people is irrelevant to our argument.
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Re: CR demographers doing research [#permalink]

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New post 10 Jan 2018, 01:59
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, the source of this question is so dubious.
I think gmat should have a forum for questions whose sources are not quite clear.
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New post 10 Jan 2018, 04:04
chesstitans wrote:
VeritasPrepKarishma
, the source of this question is so dubious.
I think gmat should have a forum for questions whose sources are not quite clear.


Yes, the source of the question may not be known but the question is not ambiguous.
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New post 10 Jan 2018, 08:26
VeritasPrepKarishma wrote:
chesstitans wrote:
VeritasPrepKarishma
, the source of this question is so dubious.
I think gmat should have a forum for questions whose sources are not quite clear.


Yes, the source of the question may not be known but the question is not ambiguous.


hello, I still do not understand why B and C are incorrect?
Pls help me. Thank you.
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chesstitans wrote:
VeritasPrepKarishma wrote:
chesstitans wrote:
VeritasPrepKarishma
, the source of this question is so dubious.
I think gmat should have a forum for questions whose sources are not quite clear.


Yes, the source of the question may not be known but the question is not ambiguous.


hello, I still do not understand why B and C are incorrect?
Pls help me. Thank you.


First understand what the argument means:

"Demographers doing research for an international economics newsletter claim that the average per capita income in the country of Kuptala is substantially lower than that in the country of Bahlton." -
Say average per capita income of K is $10,000
Say average per capita income of B is $40,000

"They also claim, however, that whereas poverty is relatively rare in Kuptala, over half the population of Bahlton lives in extreme poverty. At least one of the demographers’ claims must, therefore, be wrong."

This is possible with the numbers given above, right? Say, poverty is defined as < $5000. Say, most people in K earn $10,000. Very few are less than $5000 and very few are above $15000. Say most people lie close to the average.
On the other hand, it is possible that 80% of people in B earn only $1000. Then the rest of the 20% must have very high income i.e. say $150,000. In that case, even though average per capita income would be relatively higher, most of the population would be below poverty line.

"At least one of the demographers’ claims must, therefore, be wrong."

This is incorrect conclusion. It is not necessary that at least one of the demographers’ claims must be wrong as we showed above with some numbers.

The argument above is most vulnerable to which of the following criticisms?

(B) It treats the vague term “poverty” as though it had a precise and universally accepted meaning.

It doesn't matter how poverty is defined. We are comparing poverty with extreme poverty and that distinction is obvious. We don't need to know how to define poverty for the argument to make sense. Hence the argument is not vulnerable to this criticism.

(C) It overlooks the possibility that the number of people in the two countries who live in poverty could be the same even though the percentages of the two populations that live in poverty differ markedly.
Even if number of people living in poverty is the same in the two countries, what matters is the percentage which lives in poverty. How poor a country is will be defined by what percentage of its population lives in poverty. Whether 200 people are poor or 2000 makes no sense without knowing the total population. So the data on actual number of people is not relevant. Hence (C) is wrong too.
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CR demographers doing research [#permalink]

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New post 10 Jan 2018, 10:56
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thanks for your explanation in detail. However, I still feel uncomfortable with this question. Specifically, I hardly identify the scope of each of option. Additionally, I am unsure how the argument itself has an assumption that the question asks for.
CR demographers doing research   [#permalink] 10 Jan 2018, 10:56
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