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We will learn the sample size (n) must be large enough to represent a population:
1) when many samples (each size n) are taken “the (sample) distribution of the sample means” tends to be a normal distribution,
2) when many samples (each size n) are taken “the (sample distribution of the sample ranges” tends to be skewed to the right.

Previous video in this series can be seen at:
https://youtu.be/vql_JAyk59M
Next video in this series can be seen at:
https://youtu.be/DnKYTa4SWaU