Descriptive Skewness & Tail Weight

Explore empirical skewness and tail weight using explicitly stated moment conventions. Calculate standardized third and fourth moments, compare raw and excess kurtosis, and reason about outliers, affine transformations, constant data and estimator differences. Prerequisites: centered deviations, variance, powers and square roots. Population-moment existence is discussed conceptually without integration. Includes single-select and multiselect practice with worked explanations and misconception-specific feedback.

Further reading and method references:

• NIST: skewness and kurtosis