Dataframe or a series

I am currently reading data aggregation with pivot tables and it looks simplified thanks to @dataquest.learning. I am, however, confused by the statement, ‘index of the resulting DataFrame’. From previous lessons, I believe it should be resulting series. I was wondering why?

the picture above is the output refered to as a dataframe

Hi @glonimi0,

Yes, it should be series. I will get it logged.