Question

If 12 is replaced with 3 in the following set, what will happen to the value of the range?

28, 45, 12, 34, 36, 45, 19, 20

It will increase.
It will decrease.
It will stay the same.

Answer 1

Since the range of a set of numbers is based entirely on the smallest number and the largest number (the largest number minus the smallest), and since 12 is the smallest number, the value of the range will decrease. 

Answer 2

Your correct answer is A: it will increase.

Hope this helps. :)