What is the average enrollment number?
CREATE TABLE College (
    enr INTEGER
)
SELECT AVG(enr) FROM College
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the average enrollment number? ### Input: CREATE TABLE College (
    enr INTEGER
) ### Response: SELECT AVG(enr) FROM College