Using SQLite3 SELECT and the DescriptiveStats module for descriptive statistics

This section will serve as our review of the SQLite3 SELECT queries and our DescriptiveStats module. In this section, we're going to take a look at loading data from our MovieLens dataset into an IHaskell notebook. We're going to be demonstrating the built-in avg function in SQLite3 and a simple inner table join in SQLite3. We're also going to be using SQLite3 and descriptive stats to find the highest median across three genres of movies. We want to know which genre is considered the highest-rated: action, drama, or sci-fi movies. In the previous section, we had just created the movies.sqlite3 database. What we need to do now is to copy that file into our data folder, and, if we look at this folder, we should see our movies.sqlite3 file, as shown in the following example:

Now let&apos...