What is the number of states that has some colleges whose enrollment is smaller than the average enrollment?
CREATE TABLE tryout (
    pid number,
    cname text,
    ppos text,
    decision text
)

CREATE TABLE player (
    pid number,
    pname text,
    ycard text,
    hs number
)

CREATE TABLE college (
    cname text,
    state text,
    enr number
)
SELECT COUNT(DISTINCT state) FROM college WHERE enr < (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 number of states that has some colleges whose enrollment is smaller than the average enrollment? ### Input: CREATE TABLE tryout (
    pid number,
    cname text,
    ppos text,
    decision text
)

CREATE TABLE player (
    pid number,
    pname text,
    ycard text,
    hs number
)

CREATE TABLE college (
    cname text,
    state text,
    enr number
) ### Response: SELECT COUNT(DISTINCT state) FROM college WHERE enr < (SELECT AVG(enr) FROM college)