What is 4500 rounded to the nearest thousand?

Answer 1

4000

Answer 2

People who do not understand bias will say round all 5s up and so the answer should be 5000.

People who do understand bias will argue that you should round 5s up or down roughly half the number of times. One way of achieving this is to make the last "surviving" significant figure even. In this case, round down to 4000.

Answer 3

4600