a. Average back the decision tree below, supplying expected monetary values for points A through E.
b. One of your fellow managers is worried that there are no probabilities given for the branches leading from point D. In order to solve the tree, he decides to assign a .5 probability to each branch. Do you agree with this procedure or not?Explain.

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4 $50 .2 .6 $12 8 $25 $37 $20 .7 .3 S5