Practical chickens

one question only

Warning

This practical has show-solution: false, solution are hidden.

Looking at this built-in dataset (regular chunk are visible):

head(chickwts)

  weight      feed
1    179 horsebean
2    160 horsebean
3    136 horsebean
4    227 horsebean
5    217 horsebean
6    168 horsebean

How many observations have we?

De we need to load a package for this dataset?