Related Experiment Video
Updated: Jul 6, 2026

Sampling Soils in a Heterogeneous Research Plot
Published on: January 7, 2019
Determining the sample size required for a community radon survey
Jing Chen1, Bliss L Tracy, Jan M Zielinski
1Radiation Protection Bureau, Health Canada, Ottawa, Canada. jing_chen@hc-sc.gc.ca
Abstract:
Radon measurements in homes and other buildings have been included in various community health surveys often dealing with only a few hundred randomly sampled households. It would be interesting to know whether such a small sample size can adequately represent the radon distribution in a large community. An analysis of radon measurement data obtained from the Winnipeg case-control study with randomly sampled subsets of different sizes has showed that a sample size of one to several hundred can serve the survey purpose well.
Related Concept Videos
Sample Size Calculation
The sample size for the given experiment or sampling effort is fundamental to any study design. Sample size decides the number of...
Sampling Plans
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
Contaminants and Errors
Another key consideration is determining the appropriate number of samples required to...
Cluster Sampling Method
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
Group Design
Sample Proportion and Population Proportion

