user: Question: What is the average crowd size when the home team scored 9.20 (74)?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Geelong', '13.8 (86)', 'Melbourne', '9.7 (61)', 'Corio Oval', 17200.0, '27 August 1927']
SQL:

assistant: SELECT AVG("Crowd") FROM "Table" WHERE "Home team score" = '9.20 (74)';