Posted by Sharon on Wednesday, July 27, 2011 at 2:09pm.
The algebraic sum of the derivations of a frequency distribution from its mean is
i) Always positive
ii) Always negative
iii) Zero
iv) A non zero number

Statistics  PsyDAG, Thursday, July 28, 2011 at 7:39pm
Proofread your questions before you post them. Do you mean "deviations"?
Since the mean functions as a fulcrum (balance point), the values on the negative side = the values on the positive side.
What does that tell you?