CREATE TABLE table_57834 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What is the average crowd where the home team scored 8.15 (63)?
SELECT AVG("Crowd") FROM table_57834 WHERE "Home team score" = '8.15 (63)'
SELECT AVG("Crowd") FROM "table_57834" WHERE "Home team score" = '8.15 (63)'