This is actually going to be a normal distribution regardless of-- this one just has a well-defined standard deviation mean.

这实际上将是一个正态分布，无论如何 - 这个只是有一个明确定义的标准偏差平均值。

So there's a 2.5% chance we'd randomly find a fifth grade boy who's taller than 157.7 centimeters, assuming this is the mean, the standard deviation, and we are dealing with a normal distribution.

所以我们有 2.5% 的机会随机找到一个身高超过 157.7 厘米的五年级男孩，假设这是均值、标准差，并且我们处理的是正态分布。