00:01
So the first example here, the every 10th student example, would be a, every 10th student, would be using systematic sampling.
00:16
We have a particular rule that we follow, and we apply that rule to the data sort of as it comes in a particular ordering.
00:25
Here, the ordering would be based on when the student arrives at the school, and we take every nth, or we sample at every nth event.
00:35
So here, since we're taking every 10th student, ordered based on when they arrive, that would be, as i said, an example of a systematic sampling.
00:44
Then a factory manager tests quality by checking every 100th gadget coming off the assembly line.
00:50
So we have, again, if we think about it, the inherent ordering, or the ordering to the data, is time ordering.
01:03
They're being ordered based on when they come off the assembly line, and we are sampling every 100th value...