CREATE TABLE table_56207 ("Date" TEXT, "Round" TEXT, "Opponent" TEXT, "Venue" TEXT, "Result" TEXT, "Attendance" FLOAT)

I want to know the average attendance for n venue and f round
SELECT AVG("Attendance") FROM table_56207 WHERE "Venue" = 'n' AND "Round" = 'f'
SELECT AVG("Attendance") FROM "table_56207" WHERE "Round" = 'f' AND "Venue" = 'n'