Question

Determine the range of this set of data.
89,73,84,91,87,77,94

Answer 1

Add the smallest number and the biggest number
94+73= 167
Divide 167 by 2 because you added only 2 numbers
167 divided by 2 is 83.5
So your answer is 83.5 or 84 if you want to round it up

Answer 2

He answer is 21. 94 was the largest value and 73 was the smallest. When you subtract them you get 21.