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The margin of error is a number that tells you how much a survey or poll result might differ from the true value for the entire population. If a poll says 52% of voters support a c?The margin of error is a statistic expressing the amount of random sampling error in the results of a survey. The larger the margin of error, the less confidence one should have th^A margin of error tells you how many percentage points your results will differ from the real population value. For example, a 95% confidence interval with a 4 percent margin of er