Instruction
Okay, let's start with Question 1!
Exercise
Calculate the average order value for each month of 2017. Show two columns: revenue_month and avg_order_value.
Order the rows by month.
Stuck? Here's a hint!


Okay, let's start with Question 1!
Calculate the average order value for each month of 2017. Show two columns: revenue_month and avg_order_value.
Order the rows by month.

