出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/01/31 22:56 UTC 版)
The margin of error is a statistic expressing the amount of random sampling error in a survey's results. The larger the margin of error, the less faith one should have that the poll's reported results are close to the "true" figures; that is, the figures for the whole population. Margin of error occurs whenever a population is incompletely sampled.
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