Draw the influence diagram that corresponds to the decision tree for Exercise 12.4. How would this influence diagram be changed in order to answer parts a, b, and c in Exercise 12.4?

In exercise

a. Draw the appropriate decision tree and calculate the EVPI for Chance Event E only.

b. Draw the appropriate decision tree and calculate the EVPI for Chance Event F only.

c. Draw the appropriate decision tree and calculate the EVPI for both Chance Events E and F: that is, perfect information for both E and F is available before a decision is made.