00:01
So we have that, generally speaking, the location of a particular percentile, location of the kth percentile, is going to be given by k over 100 times n plus 1, where n is the number of data points.
00:17
So if we are looking for, let's see here, we're looking for the 80th percentile, that is going to be 80 over 100, or simply 0 .8, times, now i'm going to have to figure out what what n is, one moment here.
00:31
I'm actually just going to first copy the data onto screen.
00:35
So we have 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15.
00:43
So we'd have 0 .8 times 16.
00:47
And 0 .8 times 16 gives us a result of 12 .8 .8.
00:52
Now, since this isn't an integer value, what we want to do is round up to the nearest integer.
01:03
So we'd say that the 80th percentile is going, or pardon me, we'd have that more accurately...