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Basic Question 0 of 11
The quantity SUM(X - XBAR) is not used as a measure of dispersion because it is ______.
B. always a positive value
C. always a negative value
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 |
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
Learning Outcome Statements
calculate, interpret, and evaluate measures of dispersion to address an investment problem
CFA® 2025 Level I Curriculum, Volume 1, Module 3.