CREATE TABLE table_name_23 (points NUMBER, engine VARCHAR2, year VARCHAR2)

What is the average points of a Cosworth v8 engine in 1973.
SELECT AVG(points) FROM table_name_23 WHERE engine = "cosworth v8" AND year = 1973
SELECT AVG("points") FROM "table_name_23" WHERE "cosworth v8" = "engine" AND "year" = 1973