平均值，哦，对不起，这里没有零。
Well let's say that average Oh sorry, let me not put the zero There.
它(outliers)是一个统计学使用的词，用来形容一些超出平均值很多的数据——例如：七尺高的妇女抑或是洛杉矶气温是零度。
It is a term used by statisticians to describe some data that are far away from the average — data on seven-foot women or freezing temperatures in Los Angeles, for example.
虽然平均值是零，但是每一个时间间隔都有一个最大(和最小)读数。
Although the average was zero, each interval had a maximum (and a minimum) reading. In this graph, my APM is displaying a flat zero line indicating the average but also the maximum value.
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