CREATE TABLE table_name_16 (decile NUMBER, authority VARCHAR2, name VARCHAR2)

What is the average Decile with a state authority and a Name of mapiu school?
SELECT AVG(decile) FROM table_name_16 WHERE authority = "state" AND name = "mapiu school"
SELECT AVG("decile") FROM "table_name_16" WHERE "authority" = "state" AND "mapiu school" = "name"