CREATE TABLE "list_of_countries_by_2010_emissions_esti" (
  "country" text,
  "co2_emissions" text,
  "area_in_km_2" real,
  "population" real,
  "emission_person" real
);

Question: If the area of a country is over 9,826,675 kilometers and a total of emissions per person less than 14.9, what's the average Population found?
SQL: SELECT AVG("population") FROM "list_of_countries_by_2010_emissions_esti" WHERE "area_in_km_2">'9,826,675' AND "emission_person"<14.9;

Question: What's the average population of Mexico if the area is 1,972,550 kilometers squared?
SQL: SELECT AVG("population") FROM "list_of_countries_by_2010_emissions_esti" WHERE "country"='mexico' AND "area_in_km_2">'1,972,550';