Quote:
Originally posted by CollegeSucks
615 is not enough. The US population is 294 million. That's only .0002%. I took stats too in college and any professor would tell you that's not a good sampling to determine anything.
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Quite obviously, you failed stats in college. On a 250 million population (children don't vote), a sample of 615 people, with a confidence level of 95%, gives a margin of error of 3.95%.