This is the 147th most frequent Korean word.
평균
"Average" or "mean."
평균 is used to indicate the mean value in a comparative sense.
그의 성적은 평균 이상입니다.
His grades are above average.
평균 is used here to denote the calculated mean score.
이번 시험의 평균 점수가 85점입니다.
The average score of this exam is 85.
평균적으로 is the adverbial form of 평균, meaning 'on average'.