What is the average frequency in MHz for stations with an ERP W of 170?
CREATE TABLE table_name_54 (frequency_mhz INTEGER, erp_w VARCHAR)
SELECT AVG(frequency_mhz) FROM table_name_54 WHERE erp_w = 170
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_54 (frequency_mhz INTEGER, erp_w VARCHAR) Question: What is the average frequency in MHz for stations with an ERP W of 170? [/INST] SELECT AVG(frequency_mhz) FROM table_name_54 WHERE erp_w = 170 </s>