Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE student (sex VARCHAR, age INTEGER)
### Question:
Find the number of students whose age is older than the average age for each gender.
### Answer:
SELECT COUNT(*), sex FROM student WHERE age > (SELECT AVG(age) FROM student) GROUP BY sex