The Average Customer focus page analyzes your customer base to build your average customer. This can be considered to be the marketing persona of your average customer, metrics-wise.
Just like how your Average Order Value tells you how much each new order is potentially worth, your Average Customer tells you what each new customer will potentially do over their customer lifetime. How much they might spend on each order, how many orders they'll place, how long between each order, etc.
The Average Customer's metrics are calculated for you automatically. As new customer behavior and orders come in, they'll be recalculated. This will let you always stay up-to-date with the natural evolution of your customer base.
Eric Davis
See how the month a customer orders will change their behavior
Repeat Customer Insights will automatically group your customers into cohorts based on when they first purchased. This will let you see how the date customers bought would impact their behavior.