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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 ______.
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 |
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Martin Rockenfeldt
Learning Outcome Statements
calculate, interpret, and evaluate measures of dispersion to address an investment problem
CFA® 2025 Level I Curriculum, Volume 1, Module 3.