What was the average crowd size when Melbourne was the home team?
CREATE TABLE table_name_9 (crowd INTEGER, home_team VARCHAR)
SELECT AVG(crowd) FROM table_name_9 WHERE home_team = "melbourne"
### Context: CREATE TABLE table_name_9 (crowd INTEGER, home_team VARCHAR) ### Question: What was the average crowd size when Melbourne was the home team? ### Answer: SELECT AVG(crowd) FROM table_name_9 WHERE home_team = "melbourne"