What is the km2 area for the population of 311?
CREATE TABLE table_name_46 (area__km_2__ INTEGER, population VARCHAR)
SELECT AVG(area__km_2__) FROM table_name_46 WHERE population = 311
### Context: CREATE TABLE table_name_46 (area__km_2__ INTEGER, population VARCHAR) ### Question: What is the km2 area for the population of 311? ### Answer: SELECT AVG(area__km_2__) FROM table_name_46 WHERE population = 311