You could try guesstimating other sets of variables, for example P(A), P(B), P(A∩B) (constraint: the latter is smaller than the former two) or P(A), P(B|A), P(B|~A) (no constraints). I’d go with the former set if I had a pile of data, and with the latter set if I didn’t.
You could try guesstimating other sets of variables, for example P(A), P(B), P(A∩B) (constraint: the latter is smaller than the former two) or P(A), P(B|A), P(B|~A) (no constraints). I’d go with the former set if I had a pile of data, and with the latter set if I didn’t.