noun
sample size
Used in statistics, surveys, and research to refer to the number of observations or participants in a sample.
この調査のサンプルサイズは1000人です。
The sample size of this survey is 1000 people.
サンプルサイズが小さいと、結果の信頼性が低くなります。
If the sample size is small, the reliability of the results decreases.