Answer:
23 cities
Explanation:
This would range between the intervals of:
- 801 - 900
- 901 - 1000
- > 1000
Following the rule of population ('000' inhabitants).
For the intervals of 801 - 900, they lie on the '3' mark, meaning that 3 European cities have a population of 801,000 to 900,000. Now for the second interval, 901 - 1,000 it is also on the '3' mark meaning that another 3 European cities have a population of over 800,000; So far, the total is 6 European cities that have a population of over 800,000.
Now finalizing for the final interval is the greater than 1,000,000 (<1,000).
It lies on the 17th mark which is about 2 lines greater than the 15th marker. So adding up the amount of cities:
17 + 6 = 23 European cities that exceed a population of 800,000.
Hence, the answer is 23 cities.