Miranda is conducting a poll to determine how many students would attend a students-only school dance if one was held. Which sample is most likely to yield a representative sample for the poll?

A representative sample should include students from across the school, selected without favoring people likely to have a particular opinion. In choice A, names are drawn blindly from the entire student body, with twenty selected from each grade, so all grades are represented. The other samples are biased or incomplete: people on Main Street may not be students, newspaper writers are self-selected, and Miranda’s classes may not reflect the whole school.

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