Table 1 represents a data set used to help make decisions based on the values of certain attributes. Example Attribute A Attribute C Decision Attribute B BI Di A B2 Bi A2 Table 1: Data set Answer the following questions You may use the table in Appendix A for your calculations. (a) Calculate the entropy for the decision data in Table 1 (b) Calculate the information gain for each attribute (c) Which node should be used for the root of the decision tree? Justify your answer. (d) Determine the remaining node(s) for the decision tree. (You needn't do calculations to determine this, but you must explain your answer.) (e) Draw the resulting decision tree