CREATE TABLE table_11200 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What is the smallest crowd size for an away team that scored 7.15 (57)?
SELECT MIN("Crowd") FROM table_11200 WHERE "Away team score" = '7.15 (57)'
SELECT MIN("Crowd") FROM "table_11200" WHERE "Away team score" = '7.15 (57)'