If you use large dots to show cities of three million or more people in 1900 and small dots for the other cities, what impression would the map give readers about the relative size of cities?

The relative sizes of the cities as indicated by the dots means that cities with smaller dots have less than 3 million inhabitants.

Therefore, if Cities with a population of 3 million or more people are depicted using a large dot, the cities represented with small dots have a population of less than 3 million people.

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It would give the readers an idea of which cities contain a huge number of people such as New York (or any cities with 3 million people or more in 1900) and which cities have less people than that..

This would also make the readers think that certain cities (even ones with a great population like 2.9 million people) are still small (in numbers) even though they have a population just as large as the cities with larger dots.

Explanation: