CREATE TABLE table_name_71 (population NUMBER, area_km_2 VARCHAR2, official_name VARCHAR2)

What is the average population vlue for an area smaller than 26.69 square km and has an official name of Rogersville?
SELECT AVG(population) FROM table_name_71 WHERE area_km_2 < 26.69 AND official_name = "rogersville"
SELECT AVG("population") FROM "table_name_71" WHERE "area_km_2" < 26.69 AND "official_name" = "rogersville"