A tree diagram has two stages. Stage 1 has two nodes and stage 2 has four nodes.

• In stage 1, the branch from the starting position to node A is labeled 0.3. The branch from the starting position to node B is an answer blank.
• In stage 2, the branch from node A to node C is an answer blank. The branch from node A to node D is labeled 0.6.
• In stage 2, the branch from node B to node C is labeled 0.3. The branch from node B to node D is an answer blank.

P(A C)=

P(A D)=

P(B C)=

P(B D)=