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In the city of Cantville, a high school earns the Young

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In the city of Cantville, a high school earns the Young [#permalink] New post 03 Mar 2013, 09:12
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In the city of Cantville, a high school earns the “Young Women in Science” award for a given year if at least ten of its female students participate in that year's state science exposition. Last year, 80 percent of all high schools in Cantville's District 1 earned this award, while only 63 percent of all high schools in the city's District 2 earned the same award. Furthermore, these percentages have remained at or near those respective levels throughout the entire twelve years since the award was instituted. It is clear, then, that the high schools in District 1 do a better job of encouraging girls to pursue science than do the high schools in District 2.

Which of the following is assumed in the argument above?

(A)Students in District 1 have more free time to pursue science projects than do students in District 2.
(B)The overall population of District 1 is not substantially larger than that of District 2.
(C)The average high school in in District 2 does not have more students than does the average high school in District 1.
(D)District 1 does not have significantly fewer all-male high schools than does District 2.
(E)School is the primary source of encouragement for students' pursuit of science.
[Reveal] Spoiler: OA

Last edited by WaterFlowsUp on 11 Oct 2013, 20:54, edited 1 time in total.
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Re: In the city of Cantville, a high school earns the “Young [#permalink] New post 03 Mar 2013, 12:22
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In the city of Cantville, a high school earns the “Young Women in Science” award for a given year if at least ten of its female students participate in that year's state science exposition.

Ok a fact

Last year, 80 percent of all high schools in Cantville's District 1 earned this award, while only 63 percent of all high schools in the city's District 2 earned the same award.

Another fact

Furthermore, these percentages have remained at or near those respective levels throughout the entire twelve years since the award was instituted.

the rate is stable over the years

It is clear, then, that the high schools in District 1 do a better job of encouraging girls to pursue science than do the high schools in District 2.

Conclusion

Which of the following is assumed in the argument above?

(A)Students in District 1 have more free time to pursue science projects than do students in District 2.

free time. I diidn't see anything about free time in the stimulus

(B)The overall population of District 1 is not substantially larger than that of District 2.

Population is larger in one district rather in another. is not the point

(C)The average high school in in District 2 does not have more students than does the average high school in District 1.

More students is not the point

(D)District 1 does not have significantly fewer all-male high schools than does District 2.

This is the assumption. It explains why the rate is constant over the year and why in one district is always higher. Thanks to the female population in high school


(E)School is the primary source of encouragement for students' pursuit of science.

Ecouragement in pursuing science is not the point

D is the assumption unstated in the stimulus
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Re: In the city of Cantville, a high school earns the Young [#permalink] New post 10 Apr 2013, 09:02
the assumpiton when there is a comarision of numbers/%age should be that of the overall counts to be equal , so that the comparision is justifyable. In option D it sats tat D1 does not have fewer all- male schools than D2 , which means that there is a possibility that there are more boy schools than girls which inturn means that there are fewer girls to be considered in D1 and that makes comparisions by percentage onconclusive , since fewer the number more vavriant the changes in the pecentage values.

Please explain the answer in more detail
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Re: In the city of Cantville, a high school earns the “Young [#permalink] New post 10 Apr 2013, 11:38
carcass wrote:
In the city of Cantville, a high school earns the “Young Women in Science” award for a given year if at least ten of its female students participate in that year's state science exposition.

Ok a fact

Last year, 80 percent of all high schools in Cantville's District 1 earned this award, while only 63 percent of all high schools in the city's District 2 earned the same award.

Another fact

Furthermore, these percentages have remained at or near those respective levels throughout the entire twelve years since the award was instituted.

the rate is stable over the years

It is clear, then, that the high schools in District 1 do a better job of encouraging girls to pursue science than do the high schools in District 2.

Conclusion

Which of the following is assumed in the argument above?

(A)Students in District 1 have more free time to pursue science projects than do students in District 2.

free time. I diidn't see anything about free time in the stimulus

(B)The overall population of District 1 is not substantially larger than that of District 2.

Population is larger in one district rather in another. is not the point

(C)The average high school in in District 2 does not have more students than does the average high school in District 1.

More students is not the point

(D)District 1 does not have significantly fewer all-male high schools than does District 2.

This is the assumption. It explains why the rate is constant over the year and why in one district is always higher. Thanks to the female population in high school


(E)School is the primary source of encouragement for students' pursuit of science.

Ecouragement in pursuing science is not the point

D is the assumption unstated in the stimulus


I do not think that your point of elimination of fr E is correct. Infact its clearly stated in the conclusion that schools in district 1 do a better job at encouraging.......So how can we infer that encouragement of girls is not the point. i think you should have touched the point of a vague term ie...School...the discussion is about "High School"...and E suggests "Schools"......So that must be point of elimination.

Consider kudos If my post helps!!

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Re: In the city of Cantville, a high school earns the Young [#permalink] New post 10 Apr 2013, 14:05
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mun23 wrote:
In the city of Cantville, a high school earns the “Young Women in Science” award for a given year if at least ten of its female students participate in that year's state science exposition. Last year, 80 percent of all high schools in Cantville's District 1 earned this award, while only 63 percent of all high schools in the city's District 2 earned the same award. Furthermore, these percentages have remained at or near those respective levels throughout the entire twelve years since the award was instituted. It is clear, then, that the high schools in District 1 do a better job of encouraging girls to pursue science than do the high schools in District 2.

Which of the following is assumed in the argument above?

(A)Students in District 1 have more free time to pursue science projects than do students in District 2.
(B)The overall population of District 1 is not substantially larger than that of District 2.
(C)The average high school in in District 2 does not have more students than does the average high school in District 1.
(D)District 1 does not have significantly fewer all-male high schools than does District 2.
(E)School is the primary source of encouragement for students' pursuit of science.

Need detail explanation................


Frankly, all explanations above are really good. This question is NOT EASY at all. If you don't read it carefully, you may pick right answer by using POE, but I bet you did not understand deeply the idea that the GMAT makers want to convey in the question.

First of all, this is assumption question regarding percentage, specifically, defender assumption (if you're interested, read Power Score CR Bible).
The most important thing here is that you must show absolute value is different from percentage value. That's the KEY.

Let examine the question:

Premise: D1 has 80% high schools earned award
Premise: D2 has 63% high schools earned award.
Conclusion: D does better than does D2 of encouraging girls to pursue science.

We have two different cases here:

(1) DIFFERENT ABSOLUTE VALUES: D1 & D2 have different the number of schools.
(2) SAME ABSOLUTE VALUES: D1 & D2 have the same number of high school; This is the case in the question.


For case (1): the number of schools in D1 & that of D2 are different.

The conclusion above is correct only if The number of high schools in D1 is not fewer than that of D2. If No, the conclusion is broken.
For instance, if D1 has 100 high schools, 80% = 80 schools had award. But D2 has more, 200 high schools for example, 63% = 126 schools had award. Yeah, we cannot say D1 did better job than did D2. So the conclusion is not hold.
But this case is TOO OBVIOUS and normally not considered in hard GMAT question.


For case (2): the number of schools in D1 & that of D2 are the same.

Let assume: The number of high schools = the number of NON-GIRL schools (all-male) + the number of GIRL INCLUDED schools.
So, we only can conclude D1 did better job if its number of Girl included schools is EQUAL or SMALLER than that of D2. If NO, review the example in case 1 above.
It also mean THE NUMBER OF NON-Girl SCHOOLS (all-male) OF D1 IS NOT FEWER THAN THAT OF D2.

That's exactly what answer D says.

Hope it's clear.

Regards.
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Re: In the city of Cantville, a high school earns the Young [#permalink] New post 24 May 2013, 03:07
In the city of Cantville, a high school earns the “Young Women in Science” award for a given year if at least ten of its female students participate in that year's state science exposition. Last year, 80 percent of all high schools in Cantville's District 1 earned this award, while only 63 percent of all high schools in the city's District 2 earned the same award. Furthermore, these percentages have remained at or near those respective levels throughout the entire twelve years since the award was instituted. It is clear, then, that the high schools in District 1 do a better job of encouraging girls to pursue science than do the high schools in District 2.

Which of the following is assumed in the argument above?

(A)Students in District 1 have more free time to pursue science projects than do students in District 2.
Free time is no where linked to the science exposition
(B)The overall population of District 1 is not substantially larger than that of District 2.
Overal population does not guarantee a higher female ration in District 1
(C)The average high school in in District 2 does not have more students than does the average high school in District 1.
Total studends do not guarantee a higher female ration in District 1
(D)District 1 does not have significantly fewer all-male high schools than does District 2.
Correct. This is directly related to the number of female students, stating that the number of girls students are same in both districts
(E)School is the primary source of encouragement for students' pursuit of science.
Not related
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Re: In the city of Cantville, a high school earns the Young [#permalink] New post 09 Oct 2013, 04:33
The second one is a trap. The one thing I have learned about cracking GMAT questions is that one really needs to have an eagle's eye view on things. U miss a word and that is all that is required to miss an answer. :). It might sound silly but training your mind to focus really sharp is equally important.
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Re: In the city of Cantville, a high school earns the Young [#permalink] New post 25 Aug 2014, 17:55
pqhai wrote:
mun23 wrote:
In the city of Cantville, a high school earns the “Young Women in Science” award for a given year if at least ten of its female students participate in that year's state science exposition. Last year, 80 percent of all high schools in Cantville's District 1 earned this award, while only 63 percent of all high schools in the city's District 2 earned the same award. Furthermore, these percentages have remained at or near those respective levels throughout the entire twelve years since the award was instituted. It is clear, then, that the high schools in District 1 do a better job of encouraging girls to pursue science than do the high schools in District 2.

Which of the following is assumed in the argument above?

(A)Students in District 1 have more free time to pursue science projects than do students in District 2.
(B)The overall population of District 1 is not substantially larger than that of District 2.
(C)The average high school in in District 2 does not have more students than does the average high school in District 1.
(D)District 1 does not have significantly fewer all-male high schools than does District 2.
(E)School is the primary source of encouragement for students' pursuit of science.

Need detail explanation................


Frankly, all explanations above are really good. This question is NOT EASY at all. If you don't read it carefully, you may pick right answer by using POE, but I bet you did not understand deeply the idea that the GMAT makers want to convey in the question.

First of all, this is assumption question regarding percentage, specifically, defender assumption (if you're interested, read Power Score CR Bible).
The most important thing here is that you must show absolute value is different from percentage value. That's the KEY.

Let examine the question:

Premise: D1 has 80% high schools earned award
Premise: D2 has 63% high schools earned award.
Conclusion: D does better than does D2 of encouraging girls to pursue science.

We have two different cases here:

(1) DIFFERENT ABSOLUTE VALUES: D1 & D2 have different the number of schools.
(2) SAME ABSOLUTE VALUES: D1 & D2 have the same number of high school; This is the case in the question.


For case (1): the number of schools in D1 & that of D2 are different.

The conclusion above is correct only if The number of high schools in D1 is not fewer than that of D2. If No, the conclusion is broken.
For instance, if D1 has 100 high schools, 80% = 80 schools had award. But D2 has more, 200 high schools for example, 63% = 126 schools had award. Yeah, we cannot say D1 did better job than did D2. So the conclusion is not hold.
But this case is TOO OBVIOUS and normally not considered in hard GMAT question.


For case (2): the number of schools in D1 & that of D2 are the same.

Let assume: The number of high schools = the number of NON-GIRL schools (all-male) + the number of GIRL INCLUDED schools.
So, we only can conclude D1 did better job if its number of Girl included schools is EQUAL or SMALLER than that of D2. If NO, review the example in case 1 above.
It also mean THE NUMBER OF NON-Girl SCHOOLS (all-male) OF D1 IS NOT FEWER THAN THAT OF D2.

That's exactly what answer D says.

Hope it's clear.

Regards.


Hi,
I have absolutely understood ur explanation but have a doubt regarding the model of assumption. In Powerscore CR, it is mentioned that whenever we see a new piece of information in the conclusion for assumption questions, they are generally supporter assumption models. In this question "encouraging girls" sounded like a new info based on which I chose D as it fills the gap in between.
Please help!
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Re: In the city of Cantville, a high school earns the Young [#permalink] New post 25 Aug 2014, 19:05
pqhai wrote:
mun23 wrote:
In the city of Cantville, a high school earns the “Young Women in Science” award for a given year if at least ten of its female students participate in that year's state science exposition. Last year, 80 percent of all high schools in Cantville's District 1 earned this award, while only 63 percent of all high schools in the city's District 2 earned the same award. Furthermore, these percentages have remained at or near those respective levels throughout the entire twelve years since the award was instituted. It is clear, then, that the high schools in District 1 do a better job of encouraging girls to pursue science than do the high schools in District 2.

Which of the following is assumed in the argument above?

(A)Students in District 1 have more free time to pursue science projects than do students in District 2.
(B)The overall population of District 1 is not substantially larger than that of District 2.
(C)The average high school in in District 2 does not have more students than does the average high school in District 1.
(D)District 1 does not have significantly fewer all-male high schools than does District 2.
(E)School is the primary source of encouragement for students' pursuit of science.

Need detail explanation................


Frankly, all explanations above are really good. This question is NOT EASY at all. If you don't read it carefully, you may pick right answer by using POE, but I bet you did not understand deeply the idea that the GMAT makers want to convey in the question.

First of all, this is assumption question regarding percentage, specifically, defender assumption (if you're interested, read Power Score CR Bible).
The most important thing here is that you must show absolute value is different from percentage value. That's the KEY.

Let examine the question:

Premise: D1 has 80% high schools earned award
Premise: D2 has 63% high schools earned award.
Conclusion: D does better than does D2 of encouraging girls to pursue science.

We have two different cases here:

(1) DIFFERENT ABSOLUTE VALUES: D1 & D2 have different the number of schools.
(2) SAME ABSOLUTE VALUES: D1 & D2 have the same number of high school; This is the case in the question.


For case (1): the number of schools in D1 & that of D2 are different.

The conclusion above is correct only if The number of high schools in D1 is not fewer than that of D2. If No, the conclusion is broken.
For instance, if D1 has 100 high schools, 80% = 80 schools had award. But D2 has more, 200 high schools for example, 63% = 126 schools had award. Yeah, we cannot say D1 did better job than did D2. So the conclusion is not hold.
But this case is TOO OBVIOUS and normally not considered in hard GMAT question.


For case (2): the number of schools in D1 & that of D2 are the same.

Let assume: The number of high schools = the number of NON-GIRL schools (all-male) + the number of GIRL INCLUDED schools.
So, we only can conclude D1 did better job if its number of Girl included schools is EQUAL or SMALLER than that of D2. If NO, review the example in case 1 above.
It also mean THE NUMBER OF NON-Girl SCHOOLS (all-male) OF D1 IS NOT FEWER THAN THAT OF D2.

That's exactly what answer D says.

Hope it's clear.

Regards.


Hi,
I have absolutely understood ur explanation but have a doubt regarding the model of assumption. In Powerscore CR, it is mentioned that whenever we see a new piece of information in the conclusion for assumption questions, they are generally supporter assumption models. In this question "encouraging girls" sounded like a new info based on which I chose D as it fills the gap in between.
Please help!
Re: In the city of Cantville, a high school earns the Young   [#permalink] 25 Aug 2014, 19:05
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