6.5 7 7.5 6.5 12 7 7.5
Range=
Mean=
Median=
IQR
Mean= all numbers added divided by amt of numbers
6.5+7+7.5+6.5+12+7+7.5=54
54/7=7.71
Range= highest number - lowest number7.5-6.5=1
Mode= number that occurs most frequently
Mode= 6.5
Hope you understand
-DBZ
actually, there are 3 modes: 6.5, 7, and 7.6
+67 
