오차가 · 오차를
margin of error, error (in measurement)
Example
이 여론 조사의 오차 범위는 3퍼센트입니다.
The margin of error for this poll is 3 percent.
Word parts
오 mistake+차 difference
Literally 'mistaken difference' — the gap between measured and true values.
Good to know
오차 is a measurement gap; a human mistake is 실수, and a system error is 오류.
Related words