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CR - weather forecast

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Senior Manager
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CR - weather forecast [#permalink] New post 18 Mar 2007, 20:22
00:00
A
B
C
D
E

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0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Meteorologists say that if only they could design an accurate mathematical model of the atmosphere with all its complexities, they could forecast the weather with real precision. But this is an idle boast, immune to any evaluation, for any inadequate weather forecast would obviously be blamed on imperfections in the model.

12. Which of the following, if true, could best be used as a basis for arguing against the author’s position that the meteorologists’ claim cannot be evaluated?

(A) Certain unusual configurations of data can serve as the basis for precise weather forecasts even though the exact causal mechanisms are not understood.
(B) Most significant gains in the accuracy of the relevant mathematical models are accompanied by clear gains in the precision of weather forecasts.
(C) Mathematical models of the meteorological aftermath of such catastrophic events as volcanic eruptions are beginning to be constructed.
(D) Modern weather forecasts for as much as a full day ahead are broadly correct about 80 percent of the time.
(E) Meteorologists readily concede that the accurate mathematical model they are talking about is not now in their power to construct.
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 [#permalink] New post 18 Mar 2007, 22:01
B for me. whats the OA ?
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 [#permalink] New post 18 Mar 2007, 22:05
I think E ... what is the original answer
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 [#permalink] New post 18 Mar 2007, 22:11
B !
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"Education is what remains when one has forgotten everything he learned in school."

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 [#permalink] New post 19 Mar 2007, 12:57
The OA is B. What I don't get is... why?
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Re: CR - weather forecast [#permalink] New post 19 Mar 2007, 15:34
I got A. If we can generate precise weather forcast from certain configurations, then we can solve the problem. Why is it incorrect?
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 [#permalink] New post 20 Mar 2007, 14:34
Wudy,

I believe what will help here is something that will help evaluate Mathematical models.

B mentions some corelation in precision in forecast and advances in mathematcal model; so thats why it sounds best answer (to me :)

For A... it does not help in anyway to argue for or against author's claim on ability to evaluate mathematical mode..

I struggle with CR..so not sure if I managed to confuse you further :lol:
  [#permalink] 20 Mar 2007, 14:34
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