SQL for Data Analytics

1. Understanding and Describing Data

Learning Objectives

By the end of this chapter, you will be able to:

• Explain data and its types
• Classify data based on its characteristics
• Calculate basic univariate statistics about data
• Identify outliers
• Use bivariate analysis to understand the relationship between two variables

In this chapter, we will cover the basics of data analytics and statistics. You will also learn how to identify outliers and gain an understanding of the relationship between variables.

Introduction

Data has fundamentally transformed the 21st century. Thanks to easy access to computers, companies and organizations have been able to change the way they work with larger and more complex datasets. Using data, insights that ...