Graduate Record Examinations (GRE) Quizzes GRE Numeric Entry

Question:

The surface area (SA) of a series of leaves was measured in a particular experiment. For each value of SA, the value d was calculated, where d is the difference between the value and the mean SA. The results were expressed in tabulated form as shown above.
If S represents the sum of all the values of | d |, what is the value of S?

Option A):
1.4
Option B):
1.6

Correct Answer is Option A):
1.4