What is the mean absolute (mad) of the data set 2,2,5 a. 0
b. 2/3
c. 4/3
d. 1/3

First, let's find the average. 
2+2+5 = 9
9/3 = 3

Now discover the distance from the mean. (Use the absolute values)

absolute(2-3) = absolute(-1) = 1
absolute(2-3) = absolute(-1) = 1
absolute(5-3) = absolute(2) =  2

Now add those up and divide by the mean

1+1+2= 4 

4/3

So the answer is C.

Finding the Mean
2, 2, 5

Add all the numbers
2 + 2 + 5 = 9

Divide by how many numbers (There are 3 numbers)
9/3 = 3

So here is the data:
Difference: 1, 1, 2 
Mean: 3 
Mean Difference = 4/3

The correct answer would be C.4/3

Hope this helps!