What is the average number of field goals scored by a right halfback who had more than 3 touchdowns?
CREATE TABLE table_75628 (
    "Player" text,
    "Position" text,
    "Starter" text,
    "Touchdowns" real,
    "Extra points" real,
    "Field goals" real,
    "Points" real
)
SELECT AVG("Field goals") FROM table_75628 WHERE "Position" = 'right halfback' AND "Touchdowns" > '3'
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 number of field goals scored by a right halfback who had more than 3 touchdowns? ### Input: CREATE TABLE table_75628 (
    "Player" text,
    "Position" text,
    "Starter" text,
    "Touchdowns" real,
    "Extra points" real,
    "Field goals" real,
    "Points" real
) ### Response: SELECT AVG("Field goals") FROM table_75628 WHERE "Position" = 'right halfback' AND "Touchdowns" > '3'