What is the average number of draws that have a total of 1 and a goal difference of 2:0?
CREATE TABLE table_67928 (
    "Wins" real,
    "Draws" real,
    "Losses" real,
    "Goal difference" text,
    "Total" real
)
SELECT AVG("Draws") FROM table_67928 WHERE "Total" = '1' AND "Goal difference" = '2:0'
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 draws that have a total of 1 and a goal difference of 2:0? ### Input: CREATE TABLE table_67928 (
    "Wins" real,
    "Draws" real,
    "Losses" real,
    "Goal difference" text,
    "Total" real
) ### Response: SELECT AVG("Draws") FROM table_67928 WHERE "Total" = '1' AND "Goal difference" = '2:0'