00:01
So in statistics, the standard deviation really is sort of the standard to measure variation within the data set.
00:10
And to illustrate that, right, i just want to show a graph.
00:16
Let's say it's a frequency graph, and it could really be any shape.
00:19
It could really be any shape, but let's say it looks like this.
00:25
Maybe we have some bumps, right? and this graph has a mean, maybe the mean is somewhere over here, right? and well, what does the standard deviation tell us? it tells us essentially the average distance that things are away from the mean.
00:43
So like you could have a point out here.
00:45
That's a very far distance from the mean, right? you could have a point over here.
00:49
That's a bit closer...