Find the number and average age of students living in each city.
CREATE TABLE student (
    city_code VARCHAR,
    age INTEGER
)
SELECT COUNT(*), AVG(age), city_code FROM student GROUP BY city_code
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: Find the number and average age of students living in each city. ### Input: CREATE TABLE student (
    city_code VARCHAR,
    age INTEGER
) ### Response: SELECT COUNT(*), AVG(age), city_code FROM student GROUP BY city_code