Find all School-related info fast with the new School-Specific MBA Forum

It is currently 21 Oct 2014, 22:27

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Some Tips on Standard Deviation Sums particularly DS 1) If

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
Director
Director
avatar
Joined: 01 Oct 2006
Posts: 500
Followers: 1

Kudos [?]: 16 [1] , given: 0

Some Tips on Standard Deviation Sums particularly DS 1) If [#permalink] New post 29 Jan 2007, 09:46
1
This post received
KUDOS
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Some Tips on Standard Deviation Sums particularly DS
1) If you add or subtract a particular constant from all the terms the sd deviation remains same and the mean is either increased or decreased by constant
2) If you multiply all terms by x then SD =x times old SD and mean = x times old mean.
3) For comparing the SD for two sets any information about mean ,median,mode and range are insufficient unless you can determine the individual terms from the given data.

Hope these help

Cheers
Yogesh
Some Tips on Standard Deviation Sums particularly DS 1) If   [#permalink] 29 Jan 2007, 09:46
    Similar topics Author Replies Last post
Similar
Topics:
31 Experts publish their posts in the topic DS questions about standard deviation Bunuel 31 27 Oct 2009, 15:36
What is the standard deviation of set S ? 1. Set S consists marcodonzelli 6 17 Feb 2008, 05:41
Is the standard deviation of A=0? 1) The minimum value of msrinath 16 30 Jun 2007, 22:57
gmat prep ds standard deviation hsk 3 12 Jun 2007, 09:10
DS Standard Deviation MBAlad 6 03 Dec 2006, 13:00
Display posts from previous: Sort by

Some Tips on Standard Deviation Sums particularly DS 1) If

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.