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As we discussed in class yesterday, sampling is the process of selecting a relatively small group of individuals whose opinions will be polled in order to draw conclusions about the opinions of the whole target population.
You can use this sample size calculator to determine how large your sample should be based on the size of your target population and the statistical confidence that is to be associated with your results. To find population sizes within the U.S., the Census Bureau is a good place to start.
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