Question: Define (1) population sample, (2) population mean, and (3) population variance. Define the relationship between these three concepts with a sample (and define each term

Define (1) population sample, (2) population mean, and (3) population variance. Define the relationship between these three concepts with a "sample" (and define each term that you use, including the term "sample").

What can we do once we know the sample mean? How do we use the sample mean to generate new information about the question that we have about the data?

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