What is the average enrollment of the Redbirds' school?
CREATE TABLE table_name_47 (enrollment INTEGER, nickname VARCHAR)
SELECT AVG(enrollment) FROM table_name_47 WHERE nickname = "redbirds"
### Context: CREATE TABLE table_name_47 (enrollment INTEGER, nickname VARCHAR) ### Question: What is the average enrollment of the Redbirds' school? ### Answer: SELECT AVG(enrollment) FROM table_name_47 WHERE nickname = "redbirds"