Statistics: Ch 7 Sample Variability (1 of 14) Why Do We Sample the Population?

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We will learn what is sample variability any why do we sample the population. Some
populations are very large and a sample can represent the population. We need to:
1) measure of the central tendency (mean=mu),
2) measure of dispersion (standard deviation),
3) types of distribution (normal, skewed, rectangular, and U-shaped).

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