Find all School-related info fast with the new School-Specific MBA Forum
Learn more about the recent changes... close

It is currently 18 Jun 2013, 17:40
Customize  |  Hide

Search
Register
New posts
Unanswered

a is the standard deviation of set A. b is the standard

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Senior Manager
Senior Manager
User avatar
Joined: 19 Feb 2004
Posts: 477
Location: Lungi
Followers: 1

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

GMAT Tests User
a is the standard deviation of set A. b is the standard [#permalink] New post 21 Feb 2004, 10:20
a is the standard deviation of set A. b is the standard deviation of setB. Is a > b?
a. both sets consist of 7 terms.
b. Set A consists of consecutive odd integers and set B consists of consecutive even integers.
SVP
SVP
User avatar
Joined: 30 Oct 2003
Posts: 1963
Location: NewJersey USA
Followers: 3

Kudos [?]: 25 [0], given: 0

GMAT Tests User
 [#permalink] New post 21 Feb 2004, 12:09
I will go with B on this one
SVP
SVP
User avatar
Joined: 30 Oct 2003
Posts: 1963
Location: NewJersey USA
Followers: 3

Kudos [?]: 25 [0], given: 0

GMAT Tests User
 [#permalink] New post 21 Feb 2004, 14:31
I believe it has to be C
Senior Manager
Senior Manager
User avatar
Joined: 19 Feb 2004
Posts: 477
Location: Lungi
Followers: 1

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

GMAT Tests User
 [#permalink] New post 22 Feb 2004, 09:13
:lol: yes the ans is C.
To find the std deviation, it is necessary to know both the number of terms and the distance of each term from the average.
1. is insufficient , since it only tells us theat the number of terms in both sets is equal.
2. insufficient, since even though the distance between each term is given, the average of the terms will vary when the number of terms is even, from when it is odd.

the statements combined are sufficient. The avg of each set will be the fourth term, and each of the seven terms is 2 away from each term closest to it.
  [#permalink] 22 Feb 2004, 09:13
    Similar topics Author Replies Last post
Similar
Topics:
 New posts Find the standard deviation of set F. (1) the standard stolyar 2 11 Jul 2004, 09:59
Popular new posts S and T are sets of numbers. The standard deviation of the kevincan 12 22 Jul 2006, 05:31
New posts S and T are sets of numbers. The standard deviation of the yezz 4 13 Aug 2006, 03:12
New posts Is the Standard Deviation of Set S greater than Standard mitul 2 27 Sep 2006, 18:35
New posts standard deviation-set of integers dimri10 3 26 Jun 2011, 07:10
Display posts from previous: Sort by

a is the standard deviation of set A. b is the standard

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: VeritasPrepKarishma, Bunuel

Search for:


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®.

Main navigation

GMAT Resources

Partners

MBA Resources

www.gmac.com|www.mba.com