The phrase "an underrepresentation of" is correct and usable in written English.
It can be used when discussing a situation where a particular group or category is not adequately represented in a given context.
Example: "The report highlighted an underrepresentation of women in leadership positions within the company."
Alternatives: "a lack of representation of" or "an insufficient representation of".
There was an overrepresentation of employees of color, an underrepresentation of white employees.
Law's election addresses what some had considered an underrepresentation of the New England Patriots' dynasty in the Hall of Fame.
There are reasons to expect an underrepresentation of racial and ethnic minorities in school leadership positions relative to student populations.
Supporters of the initiative, led by the Socialist Party of Prime Minister José Sócrates, said it was needed to correct an underrepresentation of women in Portuguese politics.
If 5mC occurs predominantly in CpG pairs, the above-mentioned mechanism will increase the mutation rate from CpG to TpG or CpA and induce an underrepresentation of CpG29.
In 2015, the program was expanded once more to encompass all of science, technology, engineering, and mathematics--the STEM disciplines--many of which have an underrepresentation of women.
The contributions indigenous ecological knowledge can make to better inform water management decisions are currently undervalued leading to an underrepresentation of indigenous values in water planning and policy.
'07, executive director of Cornell's engineering management program and an eLab instructor, noticed an underrepresentation of women in entrepreneurship classrooms and programs on campus.
In these cases, bulk sampling is required to avoid an underrepresentation of small microplastics.
This fact caused an underrepresentation of high AGB during the training process.
This may be caused by an underrepresentation of the limited number of sample points across all soil types.
