A database ________ organizes information into fields and records

What are the accuracy, precision, recall, and F1-measure of the new decision tree?

Following is a data set that contains two attributes, X and Y , and two class
labels, “+” and “?”. Each attribute can take three different values: 0, 1, or 2.

The concept for the “+” class is Y = 1 and the concept for the “?” class is
X = 0 ? X = 2.

Using the Internet to deliberately harm or harass someone is called ____________.

Fill in the blank(s) with the appropriate word(s).