"composition of groups" is a correct and usable phrase in written English.
You can use it when discussing the make-up of certain social, economic, or political groups. For example, you could say, "The composition of the student body at the university is quite diverse."
Based on those studies, the researchers scrutinized the composition of groups inside Google: How often did teammates socialize outside the office?
Sadly, the fans were let down by the broadcasters, who were able to relay only the most minimal information concerning the composition of groups and the gaps between them to those listening on radios around the course and watching big screens at various points or smaller screens at home.
Although the topic is not a focal point of Mr. Mori's trip, two of his hosts -- Nigeria, as well as South Africa -- have been at the forefront of the movement to change the composition of groups like the United Nations and the World Bank.
The DEM, as well as many tree visualizations, focuses on the large-scale pattern of evolution, so the changing genetic composition of groups of organisms is not visually apparent.
The composition of groups A, B, and C differs.
Factors explaining the composition of groups for these ungulate species differed from those explaining group sizes.
The dark-gray spot shows the representative chemical composition of group A, Cr-rich pyrope, the protolith of mantle metasomatism.
An objective basis for chemical periodicity would settle the questions about the location of hydrogen and helium, and the composition of group 3.
Based on these results, the composition of Group-I was redefined to include these two genes in addition to ROS-bZIP1 and the bHLH-type transcription factors.
Heg and others [11] provides details of the compositions of groups involved in the experiment.
With random grouping the distributions of the different compositions of groups for each of the i alleles will be binomial with parameters (p i, n), where n is the group size.
