 Construct a SQL query to give the population of people aged between 20 and 30 in the cities of New York and Los Angeles. 
 SELECT COUNT(*)
FROM population_data
WHERE age BETWEEN 20 AND 30
AND city IN ('Jeddah', 'Dubai');
 SELECT COUNT(*)
FROM population_data
WHERE age BETWEEN 20 AND 30
AND city IN ('New York', 'Los Angeles');
 قم ببناء استعلام SQL لإعطاء عدد سكان الأشخاص الذين تتراوح أعمارهم بين 20 و 30 في مدن دبي وجدة..