Find all School-related info fast with the new School-Specific MBA Forum

It is currently 27 Aug 2014, 11:27

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Black Americans are, on the whole, about twice as likely as

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Senior Manager
Senior Manager
avatar
Joined: 25 Oct 2004
Posts: 250
Followers: 1

Kudos [?]: 5 [0], given: 0

GMAT Tests User
Black Americans are, on the whole, about twice as likely as [#permalink] New post 04 Feb 2005, 08:28
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Black Americans are, on the whole, about twice as likely as White Americans to develop high blood pressure. This likelihood also holds for westernized Black Africans when compared to White Africans.
Researchers have hypothesized that this predisposition in westernized Blacks may reflect an interaction between western high-salt diets and genes that adapted to an environmental scarcity of salt.
Which of the following statements about present-day, westernized Black Africans, if true, would most tend to confirm the researchers’ hypothesis?
(A) The blood pressures of those descended from peoples situated throughout their history in Senegal and Gambia, where salt was always available, are low.
(B) The unusually high salt consumption in certain areas of Africa represents a serious health problem.
(C) Because of their blood pressure levels, most White Africans have markedly decreased their salt consumption.
(D) Blood pressures are low among the Yoruba, who, throughout their history, have been situated far inland from sources of sea salt and far south of Saharan salt mines.
(E) No significant differences in salt metabolism have been found between those people who have had salt available throughout their history and those who have not.
Director
Director
avatar
Joined: 03 Nov 2004
Posts: 870
Followers: 1

Kudos [?]: 7 [0], given: 0

GMAT Tests User
 [#permalink] New post 04 Feb 2005, 08:53
I would go with ‘D’
A – Weakens the hypotheseis
B – Out of context
C – Out of context
E – Neither weakens nor strengthens the hypothesis
SVP
SVP
User avatar
Joined: 03 Jan 2005
Posts: 2255
Followers: 12

Kudos [?]: 196 [0], given: 0

GMAT Tests User
Re: cr- black americans [#permalink] New post 04 Feb 2005, 09:45
Hypothesis: interaction bt high salt diet and genes that fits for low salt leads to high blood pressure.

(A) The blood pressures of those descended from peoples situated throughout their history in Senegal and Gambia, where salt was always available, are low.
no genes for low salt -> no HBP.
Seems support the hypothesis

(B) The unusually high salt consumption in certain areas of Africa represents a serious health problem.
high salt consumption leads to health problem
It's a claim that has no relavence

(C) Because of their blood pressure levels, most White Africans have markedly decreased their salt consumption.
What people do because of their belief will not confirm whether the belief is right

(D) Blood pressures are low among the Yoruba, who, throughout their history, have been situated far inland from sources of sea salt and far south of Saharan salt mines.
genes for less salt -> low HBP
Won't support the hypothesis

(E) No significant differences in salt metabolism have been found between those people who have had salt available throughout their history and those who have not.
genes don't matter
weakens the hypothesis

(A)
Senior Manager
Senior Manager
avatar
Joined: 25 Oct 2004
Posts: 250
Followers: 1

Kudos [?]: 5 [0], given: 0

GMAT Tests User
 [#permalink] New post 04 Feb 2005, 15:18
OA is A

Good explanation Hong Hu
  [#permalink] 04 Feb 2005, 15:18
    Similar topics Author Replies Last post
Similar
Topics:
Black Americans are, on the whole, about twice as likely as acer2knight 7 25 Jun 2009, 23:36
Black Americans are, on the whole, about twice as likely as cybera 2 15 Jul 2005, 21:38
Black Americans are, on the whole, about twice as likely as dvs112 7 12 Apr 2005, 13:17
Black Americans are, on the whole, about twice as likely as karun_aggarwal 3 12 Apr 2005, 10:32
Black Americans are, on the whole, about twice as likely as karun_aggarwal 7 12 Apr 2005, 10:30
Display posts from previous: Sort by

Black Americans are, on the whole, about twice as likely as

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.