The phrase "a majority of samples" is correct and usable in written English.
You can use it when discussing data analysis, research findings, or any context where you are referring to more than half of a set of samples.
Example: "In our study, a majority of samples showed a significant increase in performance after the intervention."
Alternatives: "most of the samples" or "the greater part of the samples".
The county health department said lead in soil samples ranged from 2,400 parts per million along a repaved road to 1,000 parts per million in the picnic area and from 100 to 500 parts per million in a majority of samples.
DNA sequences from 30 introns at 25 nuclear loci are determined for both diploid chromosomes from a majority of samples.
For all PIs, the median fold-change in susceptibility was ≤1, indicating a majority of samples having lower susceptibility to these agents compared to the reference strain.
When all 19,611 vPhenotypes were examined, a majority of samples had vPhenotypes below the lower CCO for every agent except ddI (data not shown).
Furthermore, a majority of samples, with or without direct repeat at the breakpoint, showed very high sequence homology, exceeding 60% in some cases, within the 49 nucleotides around the breakpoint (Table 1).
We found that co-occurrences of frequent CNAs within a sample were common; indeed, a majority of samples (249 out of 345) contained 2 or more of the frequent CNAs listed in Table 1.
Results indicate that, for each of the three SES variables examined, achievement gaps have increased in a majority of sample countries.
A majority of the samples contained FRs at levels >1.0 mg/g, while 3 samples contained detectable levels of FRs that ranged from 0.02 to 0.17 mg/g.
A majority of the samples only contained one major HpSVd variant, but some contained multiple sequence variants.
The results indicated that 25 37 of the 40 species could be detected in each fecal sample and that 33 of the species were found in a majority of the samples.
Experimental results are also presented which show that simple tension failure in these materials occurs along a line of localized deformation in a majority of the samples.
