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SELECT CN.Continent,floor(AVG(C.Population)) AS AVG_POPULATION FROM CITY C JOIN COUNTRY CN ON C.CountryCode = CN.Code group by Continent;
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Average Population of Each Continent
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SELECT CN.Continent,floor(AVG(C.Population)) AS AVG_POPULATION FROM CITY C JOIN COUNTRY CN ON C.CountryCode = CN.Code group by Continent;