mean- add all of them together and divide by the amount of numbers there is
3+5+3+3+8+8+9+9=48
48/8= 6
median- put them in ascending order and it’s the number in the middle
3,3,3,5,8,8,9,9= 6.5
the middle of the numbers is between 5and8. so do 8-5=3/2= 1.5 5+1.5
mode= most common number that appears = 3
range= biggest number take smallest number
9-3= 6