CREATE TABLE table_55303 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

What is the average crowd when the home team is north melbourne?
SELECT AVG("Crowd") FROM table_55303 WHERE "Home team" = 'north melbourne'
SELECT AVG("Crowd") FROM "table_55303" WHERE "Home team" = 'north melbourne'