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_75 (pop_¹ INTEGER, region VARCHAR, prefecture VARCHAR)
### Question:
Name the average pop for chūgoku and prefecture of okayama
### Answer:
SELECT AVG(pop_¹) FROM table_name_75 WHERE region = "chūgoku" AND prefecture = "okayama"