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_67 (fatalities INTEGER, airline VARCHAR, registration VARCHAR)
### Question:
How many fatalities are there for the airline of spantax, with a registration of ec-arz?
### Answer:
SELECT AVG(fatalities) FROM table_name_67 WHERE airline = "spantax" AND registration = "ec-arz"