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4 cards from this section. Quick, good the night before a test.
What is the definition of a moment?
Think about how we summarize data.
What is the first moment?
Consider what average refers to.
What is the third moment known as?
Think about how the distribution leans.
True or False: Central moments are always positive.
Reflect on how deviation impacts the calculations.
Given a distribution with defined raw moments, derive the relationship to its central moments.
Refer to central moment formulas.
Demonstrate how skewness affects the interpretation of a dataset using an example.
Think of income distributions.
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