CREATE TABLE county (county_id NUMBER, county_name CLOB, population NUMBER, zip_code CLOB)
CREATE TABLE election (election_id NUMBER, counties_represented CLOB, district NUMBER, delegate CLOB, party NUMBER, first_elected NUMBER, committee CLOB)
CREATE TABLE party (party_id NUMBER, year NUMBER, party CLOB, governor CLOB, lieutenant_governor CLOB, comptroller CLOB, attorney_general CLOB, us_senate CLOB)

On average how large is the population of the counties?
SELECT AVG(population) FROM county
SELECT AVG("population") FROM "county"