Question

What is the absolute deviation for the numbers: 112,145,108,160,122

Answer 1

Absolute deviation is 92.40

Rearrange numbers from least to greatest to avoid confusion.
108, 112, 122, 145, 160

Mean = (108 + 112 + 122 + 145 + 160) / 5 
          = 647 / 5
          = 129.40

Absolute deviation : (number - mean)

*absolute means that a number is always treated as a positive number contrary to its actual value

              108 - 129.40 =   21.40
              112 - 129.40 =   17.40
              122 - 129.40 =     7.40
              145 - 129.40 =   15.60
              160 - 129.40 =   30.60
total absolute deviation    92.40

Mean absolute deviation = 92.40 / 5 = 18.48