Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE Apartments ( room_count INTEGER, apt_type_code VARCHAR )

### Question ###
What is the average number of rooms of apartments with type code 'Studio'?

### Accurate SQL ###

SELECT AVG(room_count) FROM Apartments WHERE apt_type_code = "Studio"