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Load and explore data. Conduct simple data analysis.
1. Introduction
Check data quality – NAs and imputation
Define customer activity levels


A company named Lilim Inc. has distribution centers in Hamburg, Munich, and Berlin. Like most companies, they keep records about their customers and business. In this section, you've been hired by Lilim Inc. to analyze their customers by performing customer segmentation, defining customer activity levels, and analyzing sales per segment.

Let's dive right in!


We've prepared the data in a CSV file named "customers.csv". File is located in data folder. Load this data from the CSV file into a data frame named customers.