测量的误差幅度为2.5%。

The survey has a margin of error of 2.5%.

《牛津词典》

误差幅度在三个百分点左右。

The margin of error was plus or minus three percentage points.

《牛津词典》

平均误差幅度在3%左右。

The average margin of error is around 3%.

youdao

Okay, so you can see the size of the errors and you can see the problem with dietary assessment, and you can see the problem with how many calories get packed in processed foods.

你们看见了,误差的幅度很大,你们也明白了膳食评估的困难,你们也发现了,加工食品含有大量卡路里的问题

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Highly educated people, a lot of you probably care a lot about food, think about labels, read them and things like that, not one person out of the 300-350 people in this room guessed correctly within ten percent margin of error.

你们受过高等教育,注意饮食健康,关注食品标签,等等,在10%的误差幅度下,在300-350个人中,没有一个人估计正确

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选