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4. The newspaper in the previous problem decides to increase the size of its random sample of citizens from 250 people to 500 people. The

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4. The newspaper in the previous problem decides to increase the size of its random sample of citizens from 250 people to 500 people. The increase in sample size will O increase the bias of the estimate. increase the variability of the estimate. O reduce the bias of the estimate. reduce the variability of the estimate

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