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3. (8pts) Refer to the following DAG: Ао L1 A Y U Here A, refers to HIV treatment at time 0, Lų refers to CD4 count at t
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3. (8pts) Refer to the following DAG: Ао L1 A Y U Here A, refers to HIV treatment at time 0, Lų refers to CD4 count at t
3. (8pts) Refer to the following DAG: Ао L1 A Y U Here A, refers to HIV treatment at time 0, Lų refers to CD4 count at time 1, A1 refers to HIV treatment at time 1, and Y refers to CD4 count at time 2. U refers to unmeasured common causes of Lị and Y (a) (4pts) Interpret the following notation in terms of plain language: E[Y(Ao = 1, A1 = 0)] (b) (4pts) Interpret the following notation in terms of plain language E[Y | A0 = 1, A1 = 0] =