What is the average membership with 3.33% LDS and less than 47 branches?
CREATE TABLE "table" (
  "state" text,
  "membership" real,
  "population" real,
  "pct_lds" text,
  "wards" real,
  "branches" real,
  "total_congregations" real
);
SELECT AVG("membership") FROM "table" WHERE "pct_lds"='3.33%' AND "branches"<47;