Tree Diagrams (probability)
It’s a tool to organize outcomes/probabilities
T ree diagrams Tree diagrams are a tool to organize outcomes and probabilities around the structure of the data. They are most useful when two or more processes occur in a sequence and each process is conditioned on its predecessors. The smallpox data fit this description. We see the population as split by inoculation: yes and no. Following this split, survival rates were observed for each group. This structure is reflected in the tree diagram shown in Figure 2.17. The first branch for inoculation is said to be the primary branch while the other branches are secondary.
Figure 2.17: A tree diagram of the smallpox data set.
Useful when 2 or more processes occur in a sequence and each process is conditioned in its predecessors
Foundation for Decision Tree (Decision Theory)