Name the average econ for runs more than 703 and ovrs more than 25.5
CREATE TABLE "one_day_internationals" (
  "player" text,
  "wkts" real,
  "runs" real,
  "econ" real,
  "ovrs" real
);
SELECT AVG("econ") FROM "one_day_internationals" WHERE "ovrs">25.5 AND "runs">703;