#covering-edge

1 question from Probabilistic & Graphical Models

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Question 1: Single choice

hardAI-checkedProbabilistic & Graphical Models

Which of the three DAGs below are I-equivalent?

Three DAGs. Graph 1: v to x, v to w, x to w, w to z, y to z. Graph 2: x to v, w to v, x to w, w to z, y to z. Graph 3: v to w, x to w, w to z, y to z.

All three graphs1
Graphs 1 and 3 only2
None, because $w$ is a collider in graph 1 but $v$ is one in graph 23
Graphs 1 and 2 only4

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