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A polling firm tried to predict the results of an election by sampling 1,000 adults within a state for two days prior to the election, using landline telephones of likely voters. After the election, the firm found that their poll results were not close to the actual election results. Which of the following recommendations would be the best for the firm to follow in the future?A. Sample people who have cell phones, in addition to those with landlines.B. Conduct the survey over a one-day period rather than two daysC. Adjust the results if the sample includes more people from one party than another.D. Use an Internet-based poll that encourages people to vote online for their preferred candidate.
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