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Sampling and Selection Bias
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GMAT
GMAT.168 Sampling and Selection Bias
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Which flaw best explains why the cited evidence may be inadequate?
A
It counts only readers who finished the novel and answered the author's survey, leaving out people or cases that did not remain, complete, or qualify.
B
It overlooks whether the people collecting the data had enough training.
C
It assumes that all members of a broad category use the same vocabulary.
D
It uses the term novel without giving a precise technical definition.
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