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# Among people experience migraine headaches, some experience

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Intern
Joined: 22 Aug 2014
Posts: 1

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05 Dec 2014, 04:53
i got a migraine reading this...but A

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BSchool Forum Moderator
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03 Jul 2015, 14:11
atey2010 wrote:
The correct answer is A. Here is why:

When I started to read this stimulus, I can tell that the author wants you to make distinction between siblings and spouse. The first sentence doesn't really help but the key to this question is the last sentence. There's a distinction and comparison between siblings of classical migraine sufferers and spouse of classical migraine sufferers. Author posits that siblings of classical migraine sufferers are four times more likely than general population to experience classical migraine. On the other hand, spouse of classical migraine sufferers are no more likely than general population to experience classical migraine. If you understand this then it should be clear why A is correct. A is synonymous to the last sentence of the passage, the author just puts it in a different or perhaps more convoluted way to catch the test takers.

Why D is incorrect? The prompt only talks about siblings (brother & sister) and spouses (husband/wives) of the migraine sufferers. The author never talk about children of migraine sufferers, therefore choice D could be true but not must be true. We need more information. However, answer choice A must be true, this is why A is correct.

BTW, notice that D is talking in the opposite direction

It says

Children of people who suffer from common migraines are not more likely than the general population to experience a common migraine.

Argument says that they are TWICE LIKELY even if you consider children to be a part of sibling

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Senior Manager
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04 Jul 2015, 07:13
IMO A is the correct answer.
And this is not a strengthen question

The information above provides the most support for which of the following hypotheses?

These question stems uses the word support but are basically must be true/Conclusion/Inference questions.

So out of all 5 options only A is true according to the Stimulus

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Manager
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31 Jul 2015, 02:44
A: This is the correct answer
B: The stimulus discusses siblings and spouses (married) not unmarried adults.
C: Does not even make sense
D: Again, the stimulus discusses siblings and spouses not specifically children. Even though, siblings could not children
E: Not necessarily correct. Just because a part of the population is twice or four times more likely to experience certain types of migraines. It does not mean that between one-quarter and one-half the general population suffer from common or classical migraine headaches. This could even be proved with a numerical example.

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09 Aug 2016, 10:18
Hello from the GMAT Club VerbalBot!

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Math Forum Moderator
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24 Sep 2016, 02:06
Among people experience migraine headaches, some experience what doctors call"common" migraines, whereas others experience "classical" migraines. Siblings and spouses of common migraine sufferers are themselves twice as likely as the general population to experience common migraines. Siblings of classical migraine sufferers are four times more likely than the general population to experience classical migraines, whereas spouses of classical migraine suferers are no more likely than the general population to experience such headaches.

Type - Inference
Boil it down - Common migraine - Siblings and spouses have 2x probability of suffering
Classical migraine -Siblings have 4x probability of suffering
Pre-Thinking - the hereditary link is an important factor in classical migraine

The information above provides the most support for which of the following hypotheses?

(A) Susceptibility to classical migraines is more dependent on hereditary factors than is susceptibility to common migraines. Correct answer
(B) Unmarried adults are more likely to suffer from classical migraines than they are to suffer from common migraines. May or may not be true
(C) People who do not experience migraine headaches are unlikely to have spouses who are migraine headache sufferers. Out of scope
(D) Children of people who suffer from common migraines are more likely than the general population to experience a common migraine. May or may not be true as children have not been talked in the argument
(E) Between one-quarter and one-half of the general population suffer from either common or classical migraine headaches. Out of scope
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+1 Kudos if you find this post helpful

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Manager
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10 May 2017, 03:31
A) Correct, since basing on premises provided it can be logically derived.
C) Incorrect, again new information about portion of population which is not susceptible to migraine.
D) Incorrect, again new information about children
E) Incorrect, new information about ratios.

Key feature of Inference question is that correct answer choice must be within given constrains presented in the passage.

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Intern
Joined: 11 Sep 2015
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14 Aug 2017, 08:17
+1 for A.
It is mentioned that siblings are 4 times more likely to suffer from classical migraines and spouses are similar to the general population here. Hence the classical migraines are linked to a hereditary problem.
Only A specifies that.

You can also reach to A by method of elimination.

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Re: Among people experience migraine headaches, some experience   [#permalink] 14 Aug 2017, 08:17

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