Explain why the polls that are so frequently quoted


Explain why the polls that are so frequently quoted during early returns on Election Day TV coverage are an example of cluster sampling.

a.Election-day polls are taken from voting precincts selected because they are believed to be representative of all voters.
b.Election-day polls are taken from small clusters of each district.
c.Each state is regarded as a cluster.
d. none of the above

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Basic Statistics: Explain why the polls that are so frequently quoted
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