In which week was the team record 7–2?
CREATE TABLE "table1_24481478_1" (
  "week" real,
  "date" text,
  "kickoff" text,
  "opponent" text,
  "final_score" text,
  "team_record" text,
  "game_site" text,
  "attendance" real
);
SELECT MIN("week") FROM "table1_24481478_1" WHERE "team_record"='7–2';