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Sources of polling error can includeGroup of answer choicesuse of random telephone polling.unrepresentative samples.respondents' lack of knowledge or interest in the issue.question wording.All these answers are correct.

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Sources of polling error can includeGroup of answer choicesuse of random telephone polling.unrepresentative samples.respondents' lack of knowledge or interest in the issue.question wording.All these answers are correct.

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Solution

All these answers are correct.

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