Exercise

Overcoming pitfalls: string issues

Being able to effectively use categorical pandas Series is an important skill to have in your toolbelt. Unfortunately, there are several common problems that you may run into when using these Series.

In this exercise, you will work through code from a previous exercise on updating a categorical Series. Follow the instructions to make sure everything goes smoothly. The used cars dataset, used_cars, is loaded for you.

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Print the frequency table of the "body_type" column for used_cars and include NaN values.