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Dobson: Some historians claim that the people who built a

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Dobson: Some historians claim that the people who built a [#permalink] New post 01 Jan 2009, 11:12
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Dobson: Some historians claim that the people who built a ring of stones thousands of years ago in Britain were knowledgeable about celestial events. The ground for this claim is that two of the stones determine a line pointing directly to the position of the sun at sunrise at the spring equinox. There are many stones in the ring, however, so the chance that one pair will point in a celestially significant direction is large. Therefore, the people who built the ring were not knowledgeable about celestial events.

Which one of the following is an error of reasoning in Dobson's argument?

A) The failure of cited evidence to establish a statement is taken as evidence that that statement is false.

B) Dobson's conclusion logically contradicts some of the evidence presented in support of it.

C) Statements that absolutely establish Dobson's conclusion are treated as if they merely give some support to that conclusion.

D) Something that is merely a matter of opinion is treated as if it were subject to verification as a matter of fact.

E) Dobson is not a scientist



ok.. we all know that the actual answer is A... the question is.. I can not relate the answer option A

The failure of cited evidence to establish a statement is taken as evidence that that statement is false.........


This does not make sense to me.. and I can not relate it to the whole argument.. dobson seems to have made...

can someone please explain that to me!!! :)
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Re: CR Dobson [#permalink] New post 01 Jan 2009, 11:28
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hbs2012 wrote:
Dobson: Some historians claim that the people who built a ring of stones thousands of years ago in Britain were knowledgeable about celestial events. The ground for this claim is that two of the stones determine a line pointing directly to the position of the sun at sunrise at the spring equinox. There are many stones in the ring, however, so the chance that one pair will point in a celestially significant direction is large. Therefore, the people who built the ring were not knowledgeable about celestial events.

Which one of the following is an error of reasoning in Dobson's argument?

A) The failure of cited evidence to establish a statement is taken as evidence that that statement is false.

B) Dobson's conclusion logically contradicts some of the evidence presented in support of it.

C) Statements that absolutely establish Dobson's conclusion are treated as if they merely give some support to that conclusion.

D) Something that is merely a matter of opinion is treated as if it were subject to verification as a matter of fact.

E) Dobson is not a scientist



ok.. we all know that the actual answer is A... the question is.. I can not relate the answer option A

The failure of cited evidence to establish a statement is taken as evidence that that statement is false.........


This does not make sense to me.. and I can not relate it to the whole argument.. dobson seems to have made...

can someone please explain that to me!!! :)




A) The failure of cited evidence ("so the chance that one pair will point in a celestially significant direction is large") to establish a statement is taken as evidence that that statement is false (" the people who built the ring were not knowledgeable about celestial events").

So Dobson shifts his opinion on a CHANCE to WERE NOT.

Hope this helps
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Re: Dobson: Some historians claim that the people who built a [#permalink] New post 11 May 2015, 01:18
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Dobson: Some historians claim that the people who built a   [#permalink] 11 May 2015, 01:18
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