Well, since MAD means Mean absolute divation, you will just do that between the 2 sets... i dont want to just gie the answer to you...i want you to figure it out with help because that is the only way you will learn.
You do the reverse and divide the 2 values to find out the last one
72/9 = 8
Do you get it?
i think it will make it smaller due to the base being longer which stretches out the two sides and makes less space inside of the triangle
A: 0 3 4 5 5 6 7 9 9 20
3 3 5 5 6 8 8 9 9
B: No, they are not symmetric