So this is the percent error and what you see here is that if the number is below the zero line it means people underestimated the calories, and the bars that go above means people overestimated the calories.

这是百分比误差,你们看,如果数字低于零,这表示人们低估了卡路里,高于零表示人们高估了卡路里

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