Answer :
[tex]\text {Hi! Let's Solve this Problem!}[/tex]
[tex]\text {Before you find the Mean, Medina and Mode you must put the numbers in order.}[/tex]
[tex]\text {Before: 83, 97, 85, 84, 96, 80, 80, 87, 91}\\\text {After: 80, 80, 83, 84, 85, 87, 91, 96, 97}[/tex]
[tex]\underline {\text {Mean}}[/tex]
[tex]\text {To Find the Mean you must Add all the Numbers then Divide.}[/tex]
[tex]\text {Add:}[/tex] [tex]\text 80+80+83+84+85+87+91+96+97=\fbox {783}}[/tex]
[tex]\text {Divide:}[/tex] [tex]\text {783/9=}[/tex]
[tex]\text {The Mean Is:}[/tex]
[tex]\fbox {87}[/tex]
[tex]\underline {\text Median}}[/tex]
[tex]\text {To find the Median you find the number that's in the middle of the set.}[/tex]
[tex]\text {Put your Left Pointer Finger on 83. Put your Right Pointer Finger on 91.}[/tex]
[tex]\text {Move your Left Finger to the Right. Move your Right Finger to the Left.}[/tex]
[tex]\text {Once your Left Finger makes it to 84 and your Right Finger makes it to 87}[/tex] [tex]\text {it shows that 85 is left in the middle.}[/tex]
[tex]\text {The Median Is:}[/tex]
[tex]\fbox {85}[/tex]
[tex]\underline {\text {Mode}}[/tex]
[tex]\text {Finding the Mode means finding the number}[/tex] [tex]\text { that shows the most in the number set given.}[/tex]
[tex]\text {Since 80 is the number that is showing more than any other number}[/tex] [tex]\text {this tells us that 80 is our Mode.}[/tex]
[tex]\text {The Mode Is:}[/tex]
[tex]\fbox {80}[/tex]
[tex]\text {Best of Luck!}[/tex]