data mining

After completing the reading this week answer the following questions:
Chapter 2:

What is an attribute and note the importance?
What are the different types of attributes?
What is the difference between discrete and continuous data?
Why is data quality important?
What occurs in data preprocessing?
In section 2.4, review the measures of similarity and dissimilarity, select one topic and note the key factors.


ch. 2 in textbook: Data and Classification: Basic Concepts