how do i define df so this code can run?

Question \#1: Check the bottom 10 rows of data frame "df". In [16] o Write your code below and press: shift+Enter te executel. print ("the last 19 rows of the datafrane") df.tail(1es) the last 10 rows of the datafraiciefri Nanetrrer Traceback (most recent cald Cell In[16], line 3 1 i lirite your code belon and press inhfteEnter te oxecuce 2 pelnt (- the last 10 rowz of the datafrase ) Mamefreons nane "4f" is not detined Add Headers Tate a look at our dataset Pandas automatically set zhe header with an isleger afarting to