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Basic Question 4 of 20

The quantity SUM(X - XBAR) is not used as a measure of dispersion because it is ______.

A. always equal to zero
B. always a positive value
C. always a negative value

User Contributed Comments 3

User Comment
hardig ok, not understanding this - what is xbar?
loisliu88 x-bar is the symbol for the sample mean
choas69 x - mean if the value was less than the mean will lead to zero and interrupt the whole thing in which they had to put the ^2
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I am using your study notes and I know of at least 5 other friends of mine who used it and passed the exam last Dec. Keep up your great work!
Barnes

Barnes

Learning Outcome Statements

calculate, interpret, and evaluate measures of dispersion to address an investment problem

CFA® 2024 Level I Curriculum, Volume 1, Module 3.