CREATE TABLE table_69638 ("Call sign" CLOB, "Frequency MHz" FLOAT, "City of license" CLOB, "ERP W" FLOAT, "Class" CLOB, "FCC info" CLOB)

In Los Banos, California, when the ERP W is than 10, what is the average Frequency MHz?
SELECT AVG("Frequency MHz") FROM table_69638 WHERE "City of license" = 'los banos, california' AND "ERP W" < '10'
SELECT AVG("Frequency MHz") FROM "table_69638" WHERE "City of license" = 'los banos, california' AND "ERP W" < '10'