Most censuses were taken, by the way, as a way of counting heads, the number of people who had to be fed at the time of a siege.

顺便提一下,大多数人口普查,都采用数人头的方法,即在围城期间统计需要给养多少人口

耶鲁公开课 - 欧洲文明课程节选

Basically if you have a number that's P in this case, than the number is lower then that shows increasing level of statistical significance.

基本上如果P,这幅图里的数比0.05更小,数字越小,表示统计学显著性越大

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选