I think you mean Mean Absolute Deviation or MAD. It means the average amount the digits are from the mean, so let's say the mean is 4 and the digits are 2, 6, 4. So find the difference of each digit 4-2=2 6-4=2 and 4-4=0. So you have 2, 2, 0. Now find the mean of those 3 numbers which will be 4/3.
Answer:
643
Step-by-step explanation:
Answer:
(1, 3)
Step-by-step explanation:
The center of a hyperbola can be found by looking at the midpoint between the two vertices.
Here, the two vertices are (1, 8) and (1, -2). We use the Midpoint Formula to figure out the vertex:
Midpoint is: 
Thus, the answer is (1, 3).
Hope this helps!