Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE district (city_population INTEGER, city_area INTEGER)
### Question:
Find the total population of the districts where the area is bigger than the average city area.
### Answer:
SELECT SUM(city_population) FROM district WHERE city_area > (SELECT AVG(city_area) FROM district)