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Y has been believed to cause Z. A new report, noting that Y [#permalink]
 09 Aug 2008, 10:17
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Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z.
Which of the following further observations would best support the new report's suggestion?
a) In cases where X occurs but Y does not, X is usually followed by Z.
b) In cases where X occurs, followed by Y, Y is usually followed by Z.
c) In cases where Y occurs but X does not , Y is usually followed by Z.
d) In cases where occurs but Z does not, Y is usually preceded by X.
e) In cases where Z occurs, it is usually preceded by X and Y.
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Director
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a) In cases where X occurs but Y does not, X is usually followed by Z.
Implies X->Z.
b) In cases where X occurs, followed by Y, Y is usually followed by Z.
Implies X->Y->Z.
c) In cases where Y occurs but X does not , Y is usually followed by Z.
Implies Y->Z.
d) In cases where occurs but Z does not, Y is usually preceded by X.
X->Y.
e) In cases where Z occurs, it is usually preceded by X and Y.
X or Y -> Z
Only A stand out, which says Z occurs because of A and not because of Y.
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CEO
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puma wrote: Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z.
Which of the following further observations would best support the new report's suggestion?
a) In cases where X occurs but Y does not, X is usually followed by Z.
b) In cases where X occurs, followed by Y, Y is usually followed by Z.
c) In cases where Y occurs but X does not , Y is usually followed by Z.
d) In cases where occurs but Z does not, Y is usually preceded by X.
e) In cases where Z occurs, it is usually preceded by X and Y. A. If x is followed by z and y doesnot occures, then it is x that caused to be occereed z.
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VP
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puma wrote: Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z.
Which of the following further observations would best support the new report's suggestion?
a) In cases where X occurs but Y does not, X is usually followed by Z.
b) In cases where X occurs, followed by Y, Y is usually followed by Z. -> opposes
c) In cases where Y occurs but X does not , Y is usually followed by Z. -> opposes
d) In cases where occurs but Z does not, Y is usually preceded by X. -> what if y is preceded by x when z occurs
e) In cases where Z occurs, it is usually preceded by X and Y.-> y's absense is not said we need to prove when y is absent z should occur if x occurs hence clearly A does this IMO A
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cheers
Its Now Or Never
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OA is A
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