00:01
You didn't show a set of data and you said you wanted to find the sample variance.
00:07
And so if you were going to show, i'm just going to give you an example of i'll use just three numbers.
00:14
Let's say our numbers are one, two, and three.
00:17
And those are our values.
00:19
So the first thing you would do is calculate the mean of those numbers.
00:23
And the mean of those numbers is add them together and then divide by three.
00:28
And you're going to end up getting two because the sum of those is six and so you have two.
00:35
And so then your next set would be to take each number minus the mean and then you're going to be squaring those values.
00:43
So you would end up having 1 minus 2 squared.
00:49
You would have 2 minus 2 squared.
00:53
You would have 3 minus 2 squared.
00:55
And let's say that the result of those comes out to be, this is negative 1 squared is 1, 0 squared is 0, and 1 squared is 1...