The phrase "a representative group of" is correct and usable in written English.
It can be used when referring to a subset of individuals or items that accurately reflects the characteristics of a larger population or category.
Example: "The study surveyed a representative group of participants to ensure the results were applicable to the general population."
Alternatives: "a typical sample of" or "a diverse selection of".
And we — "a representative group of American writers" — is this what we come out for, too?
To identify client needs in urban and rural Rabat, the team interviewed a representative group of 43 clients.
The study, an effort to understand the forces that drive political polarization, surveyed a representative group of 8,000 Americans.
Sampling, in statistics, a process or method of drawing a representative group of individuals or cases from a particular population.
They soon evolved, however, into a more rational instrument of decisionmaking -- serving as a representative group of peers to sit in judgment on a defendant's guilt.
Once researchers have created a virtual store, the next step is recruiting a representative group of consumers through advertising, telephone solicitation, or personal contact.
This methodology has what marketers call high external validity: The product is sold in a natural, competitive context to a representative group of consumers.
This paper presents a comprehensive multiscale study of the turbulence inside of an automotive monolith using a porous medium approach and a representative group of single channels.
A representative group of seven compounds was selected for detailed study: phenol, m-xylene, naphthalene, phenanthrene, 1-methylnaphthalene, dibenzofuran and carbazole.
The researchers, at the University of Chicago and the University of Toronto, contacted by letter a representative group of 3,005 older adults across the country.
Together, the two surveys contained information on a representative group of about 760,000 Americans, from their political attitudes to their reading and television habits.
