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_62 (decile INTEGER, authority VARCHAR, roll VARCHAR)
### Question:
What is the average decile of the school with a state authority and a roll number of 888?
### Answer:
SELECT AVG(decile) FROM table_name_62 WHERE authority = "state" AND roll = 888