Question

A governor would like to find out how people in his state feel about state subsidized public art. How might a cluster sample be selected?

I searched Google under the key words "<I>cluster sampling</I>" to get these possible sources:

http://en.wikipedia.org/wiki/Cluster_sampling
http://www.ryerson.ca/~mjoppe/ResearchProcess/ClusterSampling.htm
http://www.cas.lancs.ac.uk/glossary_v1.1/samp.html#clustsamp
(Broken Link Removed)

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope this helps. Thanks for asking.