This is the 14165th most frequent Russian word.
опрошенные
"Опрошенные" means "respondents" or "those surveyed."
In this sentence, "опрошенные" functions as an adjective derived from the verb "опросить" (to survey or question). It describes the students who have been surveyed.
Опрошенные студенты выразили свои взгляды на реформу образования.
The surveyed students expressed their views on the education reform.
Here, "опрошенные" is used as a noun to refer to the individuals who have been surveyed or questioned.
Согласно результатам опроса, большинство опрошенных поддерживают эту инициативу.
According to the survey results, most respondents support this initiative.
In this sentence, "опрошенным" is used as a dative plural form to denote that the surveyed individuals are the indirect object of the action of asking questions.