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_59 (erp_w INTEGER, call_sign VARCHAR, frequency_mhz VARCHAR)
### Question:
What is the ERP W for the station whose call sign is K248BJ and whose frequency MHz is higher than 97.5?
### Answer:
SELECT AVG(erp_w) FROM table_name_59 WHERE call_sign = "k248bj" AND frequency_mhz > 97.5