Consider a classification problem where the dependent variable is "risk" coded as two classes (high or low). In one of the decision tree nodes there are 100 records, out of which 60 belong to the high risk class and 40 to the low risk class. Which of the following is a measure of the quality (goodness or badness) of thenode? (Select all the apply.)

Group of answer choices

0.6*0.6 + 0.4*0.4

0.6*0.6 - 0.4*0.4

Entropy of the node