What is the average Lost when the difference is - 3, and a Played is less than 10?
CREATE TABLE "campeonato_paulista" (
  "position" real,
  "team" text,
  "points" real,
  "played" real,
  "drawn" real,
  "lost" real,
  "against" real,
  "difference" text
);
SELECT AVG("lost") FROM "campeonato_paulista" WHERE "difference"='- 3' AND "played"<10;