The phrase "a relative sample" is correct and usable in written English.
It can be used in contexts where you are discussing a sample that is compared to or associated with another sample or standard.
Example: "In our study, we collected a relative sample from various populations to analyze the differences in behavior."
Alternatives: "a comparative sample" or "a corresponding sample".
In each case, these were women that opted to attend a talk about entrepreneurship, so it may not be a relative sample of the population.
The photoacoustic signal was recorded as a function of the sample thickness, taking 16 experimental points from a relative sample thickness l0 at 10-μm steps using a micro-linear actuator model T-NA08A50 (Zaber Technologies, Inc., Vancouver, Canada).
The pyroelectric signal was recorded as a function of the sample thickness by measuring 20 experimental points from a relative sample thickness l 0, at 10-μm intervals using a micro-linear stage (model T-LSM025A; Zaber Technologies, Inc., Vancouver, Canada).
Bootstrap resampling for 10,000 replications and a relative sample size of 1 was used to generate the bootstrap probability values, as implemented in the pvclust package v.1.2-1 [ 38].
It is plausible that the detection of lower levels of methylation in cancer tissue samples reflects a relative sampling effect in tumours with less-differentiated cell populations.
The throat colour rank of males chosen at high and low breeding male density did not differ, suggesting females used a relative sampling strategy (Table 3).
Assuming a prevalence of premarital sexual behaviors of 4.8% [ 14] among senior high school students, an α of 0.05, and a relative sampling error of 0.1P, we calculated a required sample size of approximately 13,000 to allow for the larger sampling error of the complex samples procedure and an non-response rate of 10%.
In the current work, we sought to analyze in detail the difference in GBS gene expression that occurred in one blood sample (donor A) relative to other blood samples.
The difference in yield correlated with a more than 10-fold higher total bacterial community density per ml in sample A relative to sample B, which was determined by qPCR targeting the 16S rRNA gene (data not shown).
A plot of relative sample size versus number of replicate arrays is also automatically generated.
Amplification efficiency was determined via a standard curve, and relative sample quantities were normalized to Cyclophilin A levels as a loading control (See File S2 for a list of primers).
