How many wins when there are 4 losses and against are fewer than 1281?
CREATE TABLE "2011_ladder" (
  "central_murray" text,
  "wins" real,
  "byes" real,
  "losses" real,
  "draws" real,
  "against" real
);
SELECT AVG("wins") FROM "2011_ladder" WHERE "losses"=4 AND "against"<1281;