
Visual Summary: Computational
Formulas
for the Variance and the Standard Deviation
|
Decide if you have a Population or a Sample Population Sample |
|
|
ê |
|
Compute the Sum of the X
|
Compute the Sum of the X
|
|
|
ê |
|
Compute the Sum of the X2
|
Compute the Sum of the X2
|
|
|
ê |
|
Compute the Variance
|
Compute the Variance
|
|
|
ê |
|
Compute the Standard Deviation
|
Compute the Standard Deviation
|
[Top of Page] [News]
[FAQ] [Hints]
[Course News] [Course Outline] [Chapter Outlines] [Homework] [Practice Tests] [Dr. Vernoy]
Copyright © 2004 by Mark W. Vernoy