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Necessary Assumptions in Sampling Arguments
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LSAT
LR.065 Necessary Assumptions in Sampling Arguments
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Which one of the following is an assumption required by the argument?
A
The sample was selected by a process that was perfectly random in every respect.
B
The sunny spring weekday rack counts are not biased in a way that makes them unreliable for judging year-round bicycle commuting among downtown workers.
C
Every relevant subgroup in the target population appeared in the sample in exact proportion.
D
No unsampled person, case, or situation could differ from the sample on any relevant feature.
E
The evidence establishes what caused the sampled result rather than merely showing that the result occurred.
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