Summary
Go over a summary of what we have learned so far in this chapter.
We'll cover the following...
In this chapter, we learned about the following concepts.
Quantitative vs. qualitative data
Data can be quantitative or qualitative. Quantitative or numerical data contains numerical variables that can be discrete or continuous. Qualitative or categorical data contains categorical variables that define characteristics that can be nominal or ordinal.
Since we can’t perform mathematical operations on categorical data, we must deal with them before feeding them to our machine ...