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The city’s center for disease control reports that the rabies epidemic

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The city’s center for disease control reports that the rabies epidemic  [#permalink]

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New post 10 Apr 2019, 11:43
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A
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  55% (hard)

Question Stats:

61% (02:05) correct 39% (02:02) wrong based on 54 sessions

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The city’s center for disease control reports that the rabies epidemic is more serious now than it was two years ago: two years ago less than 25 percent of the local raccoon population was infected, whereas today the infection has spread to more than 50 percent of the raccoon population. However, the newspaper reports that whereas two years ago 32 cases of rabid raccoons were confirmed during a 12-month period, in the past 12 months only 18 cases of rabid raccoons were confirmed.

Which one of the following, if true, most helps to resolve the apparent discrepancy between the two reports?

(A) The number of cases of rabies in wild animals other than raccoons has increased in the past 12 months
(B) A significant proportion of the raccoon population succumbed to rabies in the year before last
(C) The symptoms of distemper, another disease to which raccoons are susceptible, are virtually identical to those of rabies
(D) Since the outbreak of the epidemic, raccoons, which are normally nocturnal, have increasingly been seen during daylight hours
(E) The number of confirmed cases of rabid raccoons in neighboring cities has also decreased over the past year

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Re: The city’s center for disease control reports that the rabies epidemic  [#permalink]

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New post 10 Apr 2019, 12:25
Hey! Why the option is not C, but B?
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The city’s center for disease control reports that the rabies epidemic  [#permalink]

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New post 10 Apr 2019, 12:36
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nm97, we are told that 50% of the population has the disease. (C) is trying to say that maybe we are just confusing the symptoms. This is wrong because we are told that the population is, indeed, diseased, and because we would have to assume that the medical examiner got it wrong. The LSAT is trying to give you information you do not need to try and fill the gap.

As for B, let's assume we have 100 raccoons. If 25% are infected then there are 25 infected. Now let's say the number is down to, say, 20. If 50% are infected, then this would explain why we are seeing less: because there are fewer around. But, the percentage is still higher.
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Re: The city’s center for disease control reports that the rabies epidemic  [#permalink]

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New post 11 Apr 2019, 02:05
Hey, Can any expert help me to understand this? I am in general having a lot of difficulty with discrepancy questions.

Thanks

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Re: The city’s center for disease control reports that the rabies epidemic  [#permalink]

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New post 11 Apr 2019, 03:25
AmanMatta, do you have a specific question? I can explain the whole the question, but if you have a specific answer that is troubling you I can focus on that.

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Re: The city’s center for disease control reports that the rabies epidemic   [#permalink] 11 Apr 2019, 03:25
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