CREATE TABLE table_68262 ("Name" CLOB, "Years" CLOB, "Gender" CLOB, "Area" CLOB, "Authority" CLOB, "Decile" FLOAT, "Roll" FLOAT)

tell me the average roll for the featherston area and integrated authority.
SELECT AVG("Roll") FROM table_68262 WHERE "Area" = 'featherston' AND "Authority" = 'integrated'
SELECT AVG("Roll") FROM "table_68262" WHERE "Area" = 'featherston' AND "Authority" = 'integrated'