its easier to quantify etc
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Public Opinion Polls
Political polls can't ask everybody in the Us their opinion, so they as a small group -- called a sample.
u r stupid read ur book! loll
Multistage sampling is a form of cluster sampling where instead of using the entire cluster, random samples from each cluster are used. This is typically used when doing opinion polls or surveys.
Through taking POLLS. However the result of a Poll can be skewed by the way a question is worded, to whom it is asked, where it is asked, even the time of day may make a difference.