FormulaSheets-X1 - BUS-271 FORMULA SHEETS (X1) Sven...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
1 BUS-271 FORMULA SHEETS (X1) © Sven Thommesen 2011 [Updated 05/19/2009] CHAPTER 3 FORMULAS STATISTICAL CONCEPT Formula for a SAMPLE Formula for a POPULATION MEAN x 1 n i i X n x 1 N i i X N x VARIANCE of x 2 2 1 () 1 n i i X xX s n 2 2 1 N iX i X x N STANDARD DEVIATION for x 2 xx ss 2  COEFFICIENT OF VARIATION for x . . 100 s cv X  . . 100 Z-SCORES from x
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online