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What is the defining characteristic of a simple random sample?

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A simple random sample is a sample that ...

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Stratified sampling does not involve simple random sampling.

A) True
B) False

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Explain how you would determine if a variable is an explanatory variable or aresponse variable? Again, you may use an example to support your answer but not asa substitute for an explanation.

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In an experiment, the explanatory variab...

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Variables are extraneous if their effects on the response variable cannot bedistinguished from one another.

A) True
B) False

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