2. A Gallup Poll showed that 30% of Americans are satisfied with the way things are going in the United States. Suppose a sample of 20 Americans is selected as part of a study of the state of the nation. The Americans in the sample are asked whether or not they are satisfied with the way things are going in the United States. For the sample of 20 Americans, what is the variance of Americans who are satisfied? 3.4 4.2 5.2 None of the above are correct.

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