Suppose we have the following variables"

Variable

'' ' H What the Variable Represents Parents' smoking habits Income Smoking Lung cancer and the following data:

Case 1

2 3

4 5

6 7

8 9

10 11 12 14 15 16 17 18 19 H

Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No I

30,000 30,000 30,000 50,000 50,000 50,000 50,000 30,000 30,000 30,000 30,000 30,000 50,000 50,000 50,000 50,000 50,000 50,000 S

Yes Yes Yes Yes Yes Yes No Yes Yes Yes No No Yes Yes Yes No No No L

Yes Yes No Yes Yes No No Yes Yes No No No Yes Yes No No No No Using Tetrad (or some other Bayesian network learning algorithm) learn a DAG from these data. Next learn the parameters for the DAG. Can you suspect any causal influences from the DAG learned?