CREATE TABLE table_name_64 (crowd NUMBER, away_team VARCHAR2, venue VARCHAR2)

what is the average crowd when the away team is new zealand breakers and the venue is cairns convention centre?
SELECT AVG(crowd) FROM table_name_64 WHERE away_team = "new zealand breakers" AND venue = "cairns convention centre"
SELECT AVG("crowd") FROM "table_name_64" WHERE "away_team" = "new zealand breakers" AND "cairns convention centre" = "venue"