The average number of people living on each square mile of the county is 17 .
What is population density?
Total area of the rectangular region = 50×60 = 3000 square miles
Total population = 50,000
The population density = 50,000/3000
= 16.667 ≈ 17 people per square unit
Thus, the average number of people living on each square mile of the county is 17.
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