Exercise

Literary analysis

Let's look at the book rating data again. You've been tasked with finding out more information about this data that you couldn't calculate before. You need to find the total number of ratings used to create this dataset and how old is the oldest book.

The DataFrame df_books is available in your environment.

Instructions

100 XP

Use the sum() function to find the total of the ratings_count column.
Use the minimum() function to find the minimum value in the original_publication_year column.