Election day tv coverage-example of cluster sampling

Reference no: EM1399992

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

Reference no: EM1399992

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