What is the average when the highest score is 151?
CREATE TABLE table_28846752_4 (average VARCHAR, highest_score VARCHAR)
SELECT average FROM table_28846752_4 WHERE highest_score = "151"
### Context: CREATE TABLE table_28846752_4 (average VARCHAR, highest_score VARCHAR) ### Question: What is the average when the highest score is 151? ### Answer: SELECT average FROM table_28846752_4 WHERE highest_score = "151"