Data Science, Statistics, Analytics, Experiment, Causality.
effect X → Z can be decomposed into two parts: X → Y and Y → Z. Based on the assumptions, we: can estimate X → Z can estimate X → Y have relationship (X → Z) = (X → Y) × (Y → Z) Do you see it? Through some algebra, we can estimate Y → Z ! This is often done by regressing Y~X and then using the