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Time to contribute... Although the ratio of violent crime to [#permalink]

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17 Jun 2006, 22:28

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A

B

C

D

E

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Although the ratio of violent crime to total population is about the same in Clarksburg and Metroville, there are almost 15 percent more gun owners in Metroville. The difference in gun ownership ratios the most logical explanation for the fact that there are 23 percent fewer homicides in Clarksburg than Metroville.

The explanation above rests on an assumption that:

a) Most violent crime in Metroville is connected to groups of organized criminals that generally do not operate in Clarksburg.
b) Firearm ammunition is as easy to obtain in Clarksburg as it is in Metroville.
c) Clarksburg and Metroville are far enough apart that crime from one city does not directly impact the other.
d) The number of criminals in Metroville is not larger than the number in Clarksburg.
e) Clarksburg does not have significantly better emergency medical services than Metroville.

Will post OA once we have a good number of responses.

<edit> Opps, totally forgot the question stem. I knew I forgot something. Thanks GMATT73. Fixed!

Last edited by BCC145 on 17 Jun 2006, 22:39, edited 1 time in total.

Although the ratio of violent crime to total population is about the same in Clarksburg and Metroville, there are almost 15 percent more gun owners in Metroville. The difference in gun ownership ratios the most logical explanation for the fact that there are 23 percent fewer homicides in Clarksburg than Metroville.

The explanation above rests on an assumption that:

a) Most violent crime in Metroville is connected to groups of organized criminals that generally do not operate in Clarksburg.
b) Firearm ammunition is as easy to obtain in Clarksburg as it is in Metroville.
c) Clarksburg and Metroville are far enough apart that crime from one city does not directly impact the other.
d) The number of criminals in Metroville is not larger than the number in Clarksburg.
e) Clarksburg does not have significantly better emergency medical services than Metroville.

The ratio of violent crime to total population is the same in both cities. Lets assume that D is not true. Then, even though the two ratios are the same, the number of violent crimes in M may be much greater than in C. As an example, this could mean that in M, there are 1000 violent crimes and 5000 people, and in C there are 100 violent crimes and 500 people. In such a case, even if M has 15% more guns, the number of guns per crime is less than in C, which means in C a higher percentage of criminals might end up having guns. Yet, the percentage of homicides in M were higher. We end up with a situation where the ratio of homicides is higher in M, even though the ratio of gun owners is less

Yup D for me too ... what if the number of crminals in Metroville is larger as compared to no of criminals in Clarksburg ( also the population wud be greater in Metroville in this case) , now just counting and comparing the number of gunholders won't suffice ... This "23%" fact wud be a logical conclusion only in case when the number of criminals in both the cities is same ( also population) .. thus D for me..
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Last edited by hisharma on 25 Aug 2006, 13:14, edited 1 time in total.

The reason for the disproportion is either different populations and as a result different number of criminals or ( if the populations are the same )
difference in number of guns. Because the author's conclusion is based
on the latter, he probably assumes the former to be false.

laxieqv wrote:

what's wrong with C?

Assume C is false. Can that have any impact on the author's conclusion?
I can't see any.

Last edited by deowl on 20 Jun 2006, 07:17, edited 1 time in total.

The main point to explain here is the reason for fewer deaths which is not addressed by any choice except E. The conclusion follows only if the emergency medical service are assumed to be comparable. Otherwise that would account for fewer homicides.

Not D because, the number of criminals may be higher, and the number of deaths may also be higher but that doesn't explain the lesser "percentage" of homicides.

A) No discussion about criminals in the passage. Out.
B) Yup
C) Proximity of cities and impact of one city's crime rates on the other are not discussed.
D) Number of criminals not discussed.
E) Medical services ?!! Heck, Clarksburg must have a booming business in undertakings

The ratio of crime to population is equal in both cities but the homicides in greater in metroville.

The author argues that this is because there are more guns in Metorville.

The more number of homicides could be because there are more criminals in metroville. Just because the ratios are equal doesnot mean that the criminals are also in equal number.

Imagine E is not true. "Clarksburg does have significantly better emergency medical services than Metroville." which means even though the ratio of violent crimes to the total population is same, fewer crimes turn out to be homicides as ppl in C get better medical care which saves their lives. Hence, the conclusion falls apart.
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It looks like D because the answer stem must be a direct comparison between the two cities and access to ammo (b) is irrelevant, and proximity (c) is out of scope. The only other direct comparison would be D and that also relates to crime.

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