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# Dr. A: The new influenza vaccine is useless at best and

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Senior Manager
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15 Oct 2011, 04:18
i don't know what circular reasoning is..i choose C on basis that..
there is no clear reasoning of Dr A statement. and similar case happens with Tennis ball.
so, its C.
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15 Oct 2011, 15:11
monikaagr wrote:
Do we get Circular reasoning questions..?? 'vent encountered any in gmat prep s/w.

Thinking along the same line: do we get circular reasoning questions in the actual exam recent times? Even, I doubt whether there is any on the GmatPrep.
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18 Oct 2011, 04:48
snaps wrote:
sjgmat wrote:
Dr. A: The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient. Dr. B: But three studies published in the Journal of Medical Associates have rated that vaccine as unusually effective. Dr. A: The studies must have been faulty because the vaccine is worthless. In which of the following is the reasoning most similar to that of Dr. A?

(A) Three of my patients have been harmed by that vaccine during the past three weeks, so the vaccine is unsafe.
(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) I’m buying Vim Vitamins. Doctors recommend them more often than they recommend any other vitamins, so Vim Vitamins must be good.
(E) Since University of Muldoon graduates score about 20 percent higher than average on the GMAT, Sheila Lee, a University of Muldoon graduate, will score about 20 percent higher than average when she takes the GMAT.

Info from the text: “The vaccine is useless” because “the vaccine is worthless” i.e. no reason is given

A) “The vaccine is unsafe” because “three patients have been harmed” some sort of reasoning is present

B) JJ recommends this milk BUT SINCE i don’t trust this ninja i won’t buy this milk – a reason is there: this ninja is not trustworthy source for info

C) WingzZ balls perform better because they are “far more effective than others” i.e. better. So WingzZ get to perform Better because they are Better.

D) I buy VVs because doctor recommends them more often because blah blah -- I bought a Yugo car because my best friend recommended it.

E) Reason is given

Good explanation,
Thanks.

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19 Oct 2011, 09:51
I got C.

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23 Oct 2011, 04:06
+1 for C

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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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17 Nov 2011, 23:04
C it is.

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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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18 Nov 2011, 01:25
I got B :"(
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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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10 Jan 2012, 23:35
I chose B but now understand why it is C.

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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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10 Jan 2012, 23:43
i think i got it right for right reason (very rare!!). C. personal opinion is used w/o any evidence.

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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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16 Oct 2012, 06:59
interesting question - thanks for the feedback - i will be looking into circular reasoning more tonight when i study!

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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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15 Oct 2013, 07:10
Ans c.
Cause there is no reason given for the conclusion drawn which is similar to Dr a's line of reasoning.

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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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22 Feb 2014, 05:39
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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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22 Feb 2014, 05:42
The problem with Doctor A's argument is that it's circular - he assumes the truth of his conclusion in order to reach the conclusion.

Doctor A's argument is basically: I know the vaccine is worthless because I know that it's worthless.

Answer (C) follows the same form: why are Wingzz tennis balls the best? Because they're the best!

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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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15 Oct 2014, 14:24
Hello from the GMAT Club VerbalBot!

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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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22 Mar 2015, 12:50
Hello from the GMAT Club VerbalBot!

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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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14 Feb 2016, 08:54
Hello from the GMAT Club VerbalBot!

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Re: Dr. A: The new influenza vaccine is useless at best and [#permalink]

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21 Aug 2017, 07:35
Merged topics. Please, search before posting questions!
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Re: Dr. A: The new influenza vaccine is useless at best and   [#permalink] 21 Aug 2017, 07:35

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