Using margins in pivot tables

Sometimes it's useful to add totals in the margins of a pivot table. You can do this with the argument margins=True. In this exercise, you will practice using margins in a pivot table along with a new aggregation function: sum.

The users DataFrame, which you are now probably very familiar with, has been pre-loaded for you.

Instructions

Define a DataFrame signups_and_visitors that shows the breakdown of signups and visitors by day, as well as the totals.
- You will need to use aggfunc=sum to do this.
Print signups_and_visitors. This has been done for you.
Now pass the additional argument margins=True to the .pivot_table() method to obtain the totals.
Print signups_and_visitors_total. This has been done for you, so hit 'Submit Answer' to see the result.

Take Hint (-30xp)