In this module, we learned about the various
types of data that we encounter in data science.
First, we learned that data are divided conceptually
into two main types: categorical data and numerical data.
Next, we learned about nominal data, named
categories without a natural rank order.
Then, we learned about ordinal data, named
categories with a natural rank order.
Next, we learned about interval data, numerical
measurements with an arbitrary zero point.
Finally, we learned about ratio data, numerical
measurements with a natural zero point.
In the next module, we’ll learn about data
types and how we store these various types of data in a computer.