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Conversion rates
Time to first order
12. Average time to first order in weekly cohorts – exercise
Conversion charts


Good job! We'll do one more exercise before we move on.


Create a report of the average time to first order for weekly registration cohorts from 2017 in each registration channel. Show the following columns: week, channel_name, and avg_days_to_first_order. Order the results by the week.

Stuck? Here's a hint!

Use the following piece of code to calculate the average time:

AVG(first_order_date - registration_date)