1등급상위4%까지/2등급~11%/3등급~23%/4등급~40%/5등급~60%/6등급~77%/7등급~89%/8등급~96%/이러한관계/백분위:특정집단점수분포에서한개인의상대적위치를나타내
당신은 어느 그룹입니까?