00:01
So the mean deviation is the sum of the absolute value of the differences between the x and the mean over n.
00:09
So to compute this, we need to find the mean of the data.
00:17
So we're going to add 5, 9, 10, 11, 11, 12, 15, 18, 20, and 22 together.
00:22
And then divide by how many there are, which is 10.
00:27
And so the mean, which actually i should say is actually.
00:32
X bar is equal to 133 divided by 10 which is 13 .3.
00:43
And since we already have the value of the mean of the data set, we can now compute for the sum of the differences between the elements and the mean.
00:57
So the way that would work is this is the mean deviation formula...