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 table_name_6 (attendance INTEGER, date VARCHAR)
### Question:
On April 28, what was the average number of people attending?
### Answer:
SELECT AVG(attendance) FROM table_name_6 WHERE date = "april 28"