In a recent poll of 350 likely voters, 42% of them preferred the incumbent candidate. At the 95% confidence level, which of the

Question

In a recent poll of 350 likely voters, 42% of them preferred the incumbent candidate. At the 95% confidence level, which of the following would be closest to the margin of error of this statistic?

(1) 2.6%                        (3) 4.2%

(2) 3.7%                        (4) 5.3%

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