What is russ cochran's average margin?
CREATE TABLE table_name_30 (margin INTEGER, player VARCHAR)
SELECT AVG(margin) FROM table_name_30 WHERE player = "russ cochran"
### Context: CREATE TABLE table_name_30 (margin INTEGER, player VARCHAR) ### Question: What is russ cochran's average margin? ### Answer: SELECT AVG(margin) FROM table_name_30 WHERE player = "russ cochran"