Question: 7.19 Consider loglinear model (WXZ, WYZ). a. Draw its independence graph, and identify variables that are conditionally independent. b. Explain why this is the most

7.19 Consider loglinear model (WXZ, WYZ).

a. Draw its independence graph, and identify variables that are conditionally independent.

b. Explain why this is the most general loglinear model for a four-way table for which X and Y are conditionally independent.

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