Question: How close can we expect a sample percentage to be to the population percentage? For instance, if 53.1% of 3889 sampled voters supported Brown, how

How close can we expect a sample percentage to be to the population percentage? For instance, if 53.1% of 3889 sampled voters supported Brown, how close to 53.1% is the percentage of the entire population of 9.5 million voters who voted for him?

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