what was the attendance for a home venue and a w 3-0 result?
CREATE TABLE "2007_08_peterborough_united_f_c_season" (
  "date" text,
  "opponent" text,
  "venue" text,
  "result" text,
  "attendance" real
);
SELECT AVG("attendance") FROM "2007_08_peterborough_united_f_c_season" WHERE "venue"='home' AND "result"='w 3-0';