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A survey recently revealed a high correlation between a

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A survey recently revealed a high correlation between a [#permalink]

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New post 11 Jul 2011, 12:52
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A survey recently revealed a high correlation between a household's level of education and its library. Specifically, the more years of college and graduate school education received by the household's members, the more books in the household's library. The survey also indicated that the higher the education level of the household, the greater the percentage of books that are not works of fiction in its library.


Which of the following can be properly inferred from the survey results cited above?

A) People with a higher level of education prefer reading nonfiction to works of fiction.
B) Households with low education levels generally own more works of fiction than do households with high education levels.
C) Households with lower levels of education generally own more works of fiction than nonfiction.
4) The higher the education level of a household, the fewer works of fiction owned by the household.
5) Households with high education levels generally own more nonfiction books than do households with low education levels.

[Reveal] Spoiler:
OA is E, source Kaplan


Please explain your answers.
[Reveal] Spoiler: OA
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Re: Inference [#permalink]

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New post 11 Jul 2011, 17:46
the most important thing to notice is the term percentage .The survey also indicated that the higher the education level of the household, the greater the percentage of books that are not works of fiction in its library. the argument essentially states that higher the education level OF A household the higher percentage of non-fiction works are generally present in it's library.

A) Wrong . no such data is given. the author only says percentage of non-fiction books increases in families with higher level of education. ABSOLUTE VALUE OR PREFERENCE IS NOT GIVEN. ex- families with members who have done BA can have 20 % non-fiction in their library and families with members who did MA can have 30% non-fiction. The percentage of non-fiction books increased in Ma families(higher educated) but overall preference is still for fiction. (70%)

b)if it was more percentage of fiction, then it would have been right.

c)again we don't know absolute data.

d) again if it was fewer percentage it would have been right.

e) bang on ! the survery also stated that more years of education the more books a family owned. combined that with another finding that more educated a family more percentage of non-fiction book it reads, we come to this conclusion.
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Re: Inference [#permalink]

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New post 11 Jul 2011, 19:27
+1 for E.

From the argument
1) Total Books in High education level households > Total books in low edu. level
2) % of non fiction books is directly proportional to education level.

Now % of non fiction books = Number of non fiction books * 100 /Total no of books.
Hence if % of non fiction books is higher in High education level households, it follows from above equation that Number of non fiction books will also be higher. (since denominator is larger for high education households).


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Re: Inference [#permalink]

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New post 11 Jul 2011, 20:00
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In My opinion, it should be 'D'

4) The higher the education level of a household, the fewer works of fiction owned by the household.

Reason : "the higher the education level of the household => the greater the percentage of Non-fiction books in its library"
Because we are just talking about One household & two kind of books, percentage inherently tells the relationship between the number of two kind of books.

And 'D' exactly does that.

Besides why I don't think 'E' as correct answer, because nowhere in the argument , there is any direct mention of 'households with low education levels'
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Re: Inference [#permalink]

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New post 07 Aug 2011, 03:36
+1 for D
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Re: Inference [#permalink]

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New post 07 Aug 2011, 14:30
Aj85 wrote:
the most important thing to notice is the term percentage .The survey also indicated that the higher the education level of the household, the greater the percentage of books that are not works of fiction in its library. the argument essentially states that higher the education level OF A household the higher percentage of non-fiction works are generally present in it's library.

A) Wrong . no such data is given. the author only says percentage of non-fiction books increases in families with higher level of education. ABSOLUTE VALUE OR PREFERENCE IS NOT GIVEN. ex- families with members who have done BA can have 20 % non-fiction in their library and families with members who did MA can have 30% non-fiction. The percentage of non-fiction books increased in Ma families(higher educated) but overall preference is still for fiction. (70%)

b)if it was more percentage of fiction, then it would have been right.

c)again we don't know absolute data.

d) again if it was fewer percentage it would have been right.

e) bang on ! the survery also stated that more years of education the more books a family owned. combined that with another finding that more educated a family more percentage of non-fiction book it reads, we come to this conclusion.


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Re: Inference [#permalink]

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New post 01 Sep 2011, 14:08
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For me should be D

if we talk of % we have for instance 10% of fiction and the rest no fiction, and this is what the conclusion say: it states not that the whole books are fiction or viceversa, and nothing tells about low education.
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Re: Inference [#permalink]

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E it is ,

D suggests that if the education level of the households increases , the number of non fiction books with the household will decrease; however this is not the case.

What if the education level of the households increases and households buy more fiction books but maintains the same number of nonfiction books ?
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Re: Inference [#permalink]

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New post 01 Sep 2011, 14:55
Expert's post
shashankp27 wrote:
E it is ,

D suggests that if the education level of the households increases , the number of non fiction books with the household will decrease; however this is not the case.

What if the education level of the households increases and households buy more fiction books but maintains the same number of nonfiction books ?

it makes sense :) ok thanks
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Re: A survey recently revealed a high correlation between a [#permalink]

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New post 06 Mar 2012, 01:20
though I chose D initially, but after going through this post I could see where where I got it wrong

http://goo.gl/2uA5b
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Re: A survey recently revealed a high correlation between a [#permalink]

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New post 06 Mar 2012, 10:54
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Was a close call between D and E though...

E prevails..
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Re: A survey recently revealed a high correlation between a [#permalink]

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New post 07 Mar 2012, 00:44
Good one
I tought A because miss the initial meaning of the word "prefer".
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Re: A survey recently revealed a high correlation between a [#permalink]

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New post 11 May 2014, 07:20
Chetangupta wrote:
A survey recently revealed a high correlation between a household's level of education and its library. Specifically, the more years of college and graduate school education received by the household's members, the more books in the household's library. The survey also indicated that the higher the education level of the household, the greater the percentage of books that are not works of fiction in its library.


Which of the following can be properly inferred from the survey results cited above?

A) People with a higher level of education prefer reading nonfiction to works of fiction.
B) Households with low education levels generally own more works of fiction than do households with high education levels.
C) Households with lower levels of education generally own more works of fiction than nonfiction.
4) The higher the education level of a household, the fewer works of fiction owned by the household.
5) Households with high education levels generally own more nonfiction books than do households with low education levels.

[Reveal] Spoiler:
OA is E, source Kaplan


Please explain your answers.


This question more relates with the data manipulation(Percentage and Numbers). Re-read the sentence and it gives you two basic facts:
I - High level of education -> More number of books in the library.
II - High level of education -> More percentage of non-fiction books in the library.
See the difference in the above two statements. One talks about number and other talks about percentages. Now look at the options.

A) People with a higher level of education prefer reading nonfiction to works of fiction. -> Passage doesn't say at all about any preferences. Hence incorrect.

B) Households with low education levels generally own more works of fiction than do households with high education levels. -> May or may not be true. Since the high education levels have considerably more number of books than low level, then even though fiction books comprises low percentage the actual number may be far greater than the low education level fiction books. Hence incorrect.

C) Households with lower levels of education generally own more works of fiction than nonfiction. -> With the same reason explained in option B, this choice again may not be true. Hence incorrect.

D) The higher the education level of a household, the fewer works of fiction owned by the household. -> It may be possible that the number of fiction books is constant say 10 and the total number of books (basically non-fiction books) are increasing. This explains that fiction books now constitutes lower percentage. Hence incorrect.

E) Households with high education levels generally own more nonfiction books than do households with low education levels. -> Now consider this scenario. High education levels have more number of books and higher percentage of non-fiction books. Overall high and non-fiction high percentage leads to higher number of non-fiction books. Hence correct.

hope that helps.
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Re: A survey recently revealed a high correlation between a [#permalink]

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New post 11 May 2014, 22:17
How can E) or for that matter B) to E) can be the correct answer. The information provided be never ever talks about "owning" the books.

Experts please comment.

Thanks
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Re: A survey recently revealed a high correlation between a [#permalink]

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New post 12 May 2014, 12:06
This one is a bouncer! (above the head)

I was stuck between A and D and found D to be better choice than A.
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Re: A survey recently revealed a high correlation between a [#permalink]

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New post 12 May 2014, 13:07
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How can E) or for that matter B) to E) can be the correct answer. The information provided be never ever talks about "owning" the books.

Experts please comment.

Thanks


Don't be confused by the word library (where you normally borrow books). It's implied that people "own" the books that are in their personal libraries (i.e. the books that I own that are sitting on my bookshelf at home).

This question is testing your ability to see the difference between raw numbers (higher education leads to a greater number of books) and percentage (higher education leads to a higher percentage of non-fiction works). The wrong answer choices try to get you mixed up between percentages and raw numbers.

In E, the correct answer, we have the only implication we can pull from the facts presented. If higher education people have more books overall in their libraries, and the percentage of non-fiction books within the libraries is higher, they will own a greater number of non-fiction books than lower education people.

I will illustrate this with some made-up "average" numbers. Let's say lower-education people have 100 books at home and higher-education people have 200 books. Let's also say that lower-education people have 10% non-fiction and higher-education people have 20% non-fiction. That leads us to 10 non-fiction books (not percentage) for lower education and 40 non-fiction books for higher education, on average. Therefore, generally speaking (nice word choice in the correct answer), higher-education people will have more non-fiction books in their libraries.

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Re: A survey recently revealed a high correlation between a [#permalink]

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Re: A survey recently revealed a high correlation between a [#permalink]

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New post 29 Oct 2015, 03:15
Chetangupta wrote:
A survey recently revealed a high correlation between a household's level of education and its library. Specifically, the more years of college and graduate school education received by the household's members, the more books in the household's library. The survey also indicated that the higher the education level of the household, the greater the percentage of books that are not works of fiction in its library.


Which of the following can be properly inferred from the survey results cited above?

A) People with a higher level of education prefer reading nonfiction to works of fiction.
B) Households with low education levels generally own more works of fiction than do households with high education levels.
C) Households with lower levels of education generally own more works of fiction than nonfiction.
4) The higher the education level of a household, the fewer works of fiction owned by the household.
5) Households with high education levels generally own more nonfiction books than do households with low education levels.

[Reveal] Spoiler:
OA is E, source Kaplan


Please explain your answers.



I have a slight confusion in this question. I followed the thread but didn't quite get the answer.
The last line of the argument talks about percentage. I inferred that, the percentage of non fiction books in higher educated person's house is more. This statement is not talking about numbers. Whereas, option E says that households with high education own more NF books than households with low edu.
So i went for C. It clearly says that low level edu household has more fiction than non fiction.
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Re: A survey recently revealed a high correlation between a [#permalink]

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New post 06 Nov 2015, 03:45
i got the answer E but i am amazed to see that none of you thought that works of fiction can also be attributed to other things too say movies ; hmmm may be i just got lucky . was confused bw D AND E ; WENT FOR E
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Re: A survey recently revealed a high correlation between a [#permalink]

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New post 09 Nov 2015, 07:04
Expert's post
rohitkumar77 wrote:
i got the answer E but i am amazed to see that none of you thought that works of fiction can also be attributed to other things too say movies ; hmmm may be i just got lucky . was confused bw D AND E ; WENT FOR E


Fantastic! You got to the correct answer. Now, I'm going to challenge you to go back and figure out why D isn't the correct answer. This is our you enhance your capabilities on the GMAT. Can you see what is happening with the numbers in D that doesn't quite work on D?

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Re: A survey recently revealed a high correlation between a   [#permalink] 09 Nov 2015, 07:04
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