Harvard University Measure Uncertainty in A Decision Tree ?Worksheet

Measure Uncertainty in a decision tree  

Question A. This problem describes a type of problem typically discussed in Marketing classes, where managers are trained to understand market participation and market share.  We have simplified the number of variables and cases in the problem to make it easier to analyze. A typical realistic problem may have hundreds of variables and thousands of cases. Use these data to answer the following questions:

1.What is the probability of hospitalization given that you are male? Select all males and count the number of patients who were hospitalized. Calculate the probability as the ratio of males hospitalized to number of males.

2.Create a contingency