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Hi! In this part, we will learn how to handle missing values and errors in our data. The problems we are going to talk about are everyday problems – you're sure to run into them when you work with data. Let's start!

We'll work with data from the 2017 and 2018 censuses. First, let's look at some personal information about the respondents.


Check the structure of our data (the census2018 data frame) using the str() function.