Respuesta :
Since to round it up, you need the number after it 5 or above, to round 610000 and some more to 620000 you'd need the number after 1 to be 5 or more and therefore could be 615000.
The statement given is
The population of Vermont was estimated to be about 620,000 in 2008.
Exact population of Vermont in 2008
= 615,000 ≤ A number between ≤ 620,000
=[615000, 620000]