Encara no tenim significats per a "random sample".
1Design: A secondary analysis of data collected from a random sample study.
2A random sample took part in semistructured interviews and focus group discussions.
3Design: Epidemiological survey in a proportionally stratified random sample of nursing homes.
4A cross-sectional survey was self-administered to a random sample of undergraduate women.
5A random sample of patient charts was used to estimate health care costs.
6A proportionate to size random sample was drawn per health care worker category.
7Royal said the tests would involve a random sample of about 100 cars.
8The control group was formed by a random sample of the study population.
9Controls were sex-matched and age group-matched random sample of Ontario population.
10Design The design of this study was as a cross-sectional population-based random sample.
11A random sample of TSX and TSX-V mineral exploration companies were asked to participate.
12A random sample was used to develop a prediction model with multivariate logistic regression.
13We couldn't take a random sample of bees and hope to make a hive.
14Community-level data also were collected in 1995 from a random sample of Chicago residents.
15A random sample of 10 popular nursery rhymes shows this.
16Controls were a sex and age-group matched random sample of the population of Ontario.
Aquesta col·locació està formada per:
Random sample a través del temps
Random sample per variant geogràfica