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 0.9. 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 labeled 0.1. The branch from node A to node D is an answer blank. In stage 2, the branch from node B to node C is an answer blank. The branch from node B to node D is labeled 0.8. Outcome P(A ∩ C) =  P(A ∩ D) = P(B ∩ C) = P(B ∩ D)

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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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 0.9. 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 labeled 0.1. The branch from node A to node D is an answer blank.
  • In stage 2, the branch from node B to node C is an answer blank. The branch from node B to node D is labeled 0.8.
Outcome
P(A ∩ C)
P(A ∩ D)
=
P(B ∩ C)
=
P(B ∩ D)
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