The phrase "a subset of a sample" is correct and usable in written English.
It can be used in contexts involving statistics, research, or data analysis when referring to a smaller group selected from a larger group.
Example: "In our study, we analyzed a subset of a sample to draw more specific conclusions about the population."
Alternatives: "a portion of a sample" or "a segment of a sample".
Finally, the earlier study derived its sample by combining a subset of a random sample with new receptions to prison [ 19].
Specifically, we ask the question of how to optimally select a subset of a study sample for sequencing when choosing an internal reference panel for imputation, in order to maximize the eventual imputation accuracy.
The study households are a subset of a larger sample of 5,028 households from the same districts in which socioeconomic and health information has been collected.
A descriptive study design using a subset of a national sample survey determined the prevalence of naturally acquired swimming ability (NASA) reported by children of rural and urban communities in Bangladesh.
We now report the results of the analysis of the relationship between ADHD, alcoholism and DAT1/SLC6A3 gene polymorphism in a subset of a population sample numbering a total of 1312 persons.
Subsequent research integrates quantitative data collected from almost 1900 participants and interviews with a subset of a diverse sample of 125 PhD biomedical scientists, documenting their training experiences and career development processes.
Following density assessment, a subset of all samples with a total of 3 replicates per species, decay stage and diameter class was ground and analysed for C concentration.
Following density assessment, a subset of all samples with a total of 3 replicates per species, decay stage and diameter class was finely ground and analyzed for concentrations of C, N, P, S, Ca, K, Mg and Mn.
The tumor samples comprise a subset of a larger series of 253 tumor samples previously reported [ 10, 11].
