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The average life expectancy for the US population as a whole

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Intern
Intern
Joined: 22 Oct 2010
Posts: 10
Followers: 0

Kudos [?]: 1 [0], given: 3

The average life expectancy for the US population as a whole [#permalink] New post 02 Jan 2011, 14:42
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

95% (01:51) correct 4% (00:00) wrong based on 21 sessions
The average life expectancy for the US population as a whole is 73.9 years, but children born in Hawaii will live an average age of 77 years, and those born in Louisiana, 71.7 years. If a newly wed couple from Louisiana were to begin their family in Hawaii, therefore, their children would be expected to live longer than would be the if the family remained in Louisiana.

Which of the following, if true, would most seriously weaken the colclusion drawn in the passage?
A Insurance company statisticians do not belive that moving to Hawaii will significantly lengthen the average Louisianan's life
B The governor of Louisiana has falsely alleged that statistics for his state are inaccurate.
C The longivity ascribed to Hawwai's current popilation is attributable mostly to genetically determined factors
D Thirty percent of all Louisianans can expect to live longer than 77 years
E Most of the Hawwaiian Islands have levels of air population well below the national average for the US"


If you find the choices given convincing, then please explain why is the OA is correct.

Precicely, my doubt is that, as OA says, "Hawwai's current popilation", the genes affects longivity of the CURRENT poppulation, not necessarily the future population. So I would like to know,is the OA structurally correct?

Its one of OG question.
[Reveal] Spoiler: OA
Manager
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Joined: 20 Dec 2010
Posts: 168
Location: Stockholm, Sweden
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Kudos [?]: 26 [0], given: 5

Re: Life Expectancy [#permalink] New post 02 Jan 2011, 16:33
The main implicit idea is that life expectancy is based on two factors, environmental and genetical.

The text informs us that Hawaii has longer life expectancy than all the others, however, we don't know if its all about genetics or the environment.

The conclusion drawn is that since they live longer there, so will I if I move there (hence the environmental factor)

C) Cleary tells us that its mostly about genetics so there's no point in moving there. Sufficient

A) Their opinion is irrelevant
B) Irrelevant
D) Irrelevant
E) Supports the argument for moving, not weakens.

About the population, the questions is whether the newly wed couple's children would live longer if they moved. Since they are moving to Hawaii it's still a question about environemtal factors or genes, they don't get Hawaii-genes in one generation.

For the record, you don't have to questions OG-questions, they are correct.
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Re: Life Expectancy   [#permalink] 02 Jan 2011, 16:33
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