CREATE TABLE table_name_21 (average NUMBER, state VARCHAR2, interview VARCHAR2)

What is the Average for South Carolina with an Interview less than 9.626?
SELECT SUM(average) FROM table_name_21 WHERE state = "south carolina" AND interview < 9.626
SELECT SUM("average") FROM "table_name_21" WHERE "interview" < 9.626 AND "south carolina" = "state"