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3 cards from this section. Quick, good the night before a test.
What is skewness?
Think about what happens to the shape of the graph.
If λ = 9, what is the skewness of the Poisson distribution?
Calculate the square root of λ.
What does skewness measure?
Think about the shape of the graph.
If λ = 1, what is the skewness?
Remember the skewness formula for the Poisson distribution.
A call center receives an average of 20 calls per hour. Calculate the skewness and interpret its significance for staffing.
Use the skewness formula and think about how staffing should match call distribution.
Given λ = 50, if a company's defect rate is modeled by a Poisson distribution, find the skewness and discuss implications for quality control.
Calculate skewness first, then consider how this affects defect rate management.
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