Given a choice, most technical documents are written in past tense.

Windows Mobile is a closed source operating system

Indicate whether the statement is true or false

According to the classification error rate, which attribute would be chosen as the first splitting attribute? For each attribute, show the contingency table and the gains in classification error rate.

The following table summarizes a data set with three attributes A, B, C and
two class labels +, ?. Build a two-level decision tree.