Statistical methods are necessary because of the existence of variation. Sampling error is one source of variation, and is often misunderstood.This video explains sampling error along with other sources of variation.
0:00 Introduction
0:55 Natural variation - example - student sending texts
1:53 Explainable variation - attributable to known factors
2:20 Definition of statistical inference
2:25 Sampling variation or sampling error
3:23 The problem with the term "Sampling error"
3:53 Effect of sample size
4:09 Sampling error is unavoidable
4:50 Sampling error cannot be measured
5:50 Non-sampling error including bias
The companion video, Non-sampling error, is available to Channel Members.
• Non-Sampling Error - S...
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This blogpost also helps with understanding sampling error and the sampling distribution: creativemaths....
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Негізгі бет Sampling error and variation in statistics and data science
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