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a level maths stats confused

hii
this is just a super quick question.
in a systematic sampling am I right to say that the sample ISNT ordered? so its random

Reply 1

Kallisto

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Original post by vix.xvi

hii
this is just a super quick question.
in a systematic sampling am I right to say that the sample ISNT ordered? so its random

In a systematic sampling, you can select the samples according to the ones are in. Which and when is not relevant, so the order does not matter. The way you select matters, so it is not really random.

Example: when you chose the first sample and after that every third, it is a systematic selection you make, that has nothing to do with being randomly.

(edited 3 years ago)

Reply 2

ghostwalker

Original post by vix.xvi

hii
this is just a super quick question.
in a systematic sampling am I right to say that the sample ISNT ordered? so its random

Not an expert on the finer points of sampling, but

To do a systematic sample, you start at a random point and sample at a regular interval. So, there must be some sort of list ordering to the underlying population to allow you to identify which member of the population to select.

So, it's not a random sample, and it will reflect the underlying list ordering of the population, and in that sense it's ordered.