primary sampleの例文

例文

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1. The primary sampling frame is the Census Bureau s Master Address File ( MAF ).
2. Wertham used New York City adolescents from troubled backgrounds with previous evidence of behavior disorders as his primary sample population.
3. Since 2000, the primary sampling units have increased to 216 : 36 urban neighborhoods, 36 suburban neighborhoods, 36 towns and 108 villages.
4. The first-stage sampling frame contained 2, 919 primary sampling units ( PSUs ), consisting of 2-and 4-year colleges and universities.