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

It is currently 11 Jul 2014, 09:06

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

For a certain set of n numbers, where n>1, is the average

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
VP
VP
avatar
Joined: 22 Nov 2007
Posts: 1101
Followers: 6

Kudos [?]: 102 [0], given: 0

GMAT Tests User
For a certain set of n numbers, where n>1, is the average [#permalink] New post 03 Mar 2008, 10:58
For a certain set of n numbers, where n>1, is the average (arithmetic mean)
equal to the median?
(1) If the n numbers in the set are listed in increasing order, then the
difference between any pair of successive numbers is 2.
(2) The range of the n numbers in the set is 2(n - 1).
VP
VP
User avatar
Joined: 22 Oct 2006
Posts: 1443
Schools: Chicago Booth '11
Followers: 7

Kudos [?]: 141 [0], given: 12

GMAT Tests User
Re: statistics [#permalink] New post 03 Mar 2008, 11:05
D

just plugged in numbers
CEO
CEO
User avatar
Joined: 29 Mar 2007
Posts: 2593
Followers: 16

Kudos [?]: 173 [0], given: 0

GMAT Tests User
Re: statistics [#permalink] New post 03 Mar 2008, 11:42
terp26 wrote:
D

just plugged in numbers


Can you show how S2 is suff?
SVP
SVP
avatar
Joined: 28 Dec 2005
Posts: 1593
Followers: 2

Kudos [?]: 68 [0], given: 2

GMAT Tests User
Re: statistics [#permalink] New post 03 Mar 2008, 12:26
i think its A. Stat 2 cant be suff on its on.

Lets say n=3, the range is then 2(2)=4. So, we have three numbers whose range is 4. I picked 1,2,5. Average of these values is 8/3, and median is 2.
Manager
Manager
User avatar
Joined: 05 Feb 2007
Posts: 141
Followers: 1

Kudos [?]: 7 [0], given: 7

CAT Tests
Re: statistics [#permalink] New post 03 Mar 2008, 12:52
My answer is A.

statement 1.

2,4 A=3, M=3
2,4,6 A=4, M=4
2,4,6,8 A=7, M=7

statement 2.

5, range is 8

1,1,1,1,8

A= 2 2/5, M=1
Director
Director
User avatar
Joined: 14 Jan 2007
Posts: 783
Followers: 2

Kudos [?]: 43 [0], given: 0

GMAT Tests User
Re: statistics [#permalink] New post 03 Mar 2008, 19:22
It's A.

Stmt1:
Evenly distributed numbers have mean and median same.

So Suff

Stmt2:
The given range does not enforce any rule about the spacing between numbers. Mean may or may not be same as Median.
So Insuff
CEO
CEO
User avatar
Joined: 29 Mar 2007
Posts: 2593
Followers: 16

Kudos [?]: 173 [0], given: 0

GMAT Tests User
Re: statistics [#permalink] New post 04 Mar 2008, 05:28
Ya I thought A as well.
Intern
Intern
avatar
Joined: 04 Mar 2008
Posts: 44
Followers: 0

Kudos [?]: 3 [0], given: 6

Re: statistics [#permalink] New post 04 Mar 2008, 11:48
i think its A :-D
Re: statistics   [#permalink] 04 Mar 2008, 11:48
    Similar topics Author Replies Last post
Similar
Topics:
5 Experts publish their posts in the topic For a certain set of n numbers, where n > 1, is the average Bunuel 10 26 Feb 2014, 01:24
3 Experts publish their posts in the topic If the sum of n consecutive integers is 1, where n > 1 danzig 3 24 Oct 2012, 13:18
7 Experts publish their posts in the topic Z is the set of the first n positive odd numbers, where n is Smita04 5 14 Jun 2012, 03:08
1 Experts publish their posts in the topic For a certain set of N numbers where N>1 is the average (ari abhi47 2 31 Jan 2012, 08:31
3 Experts publish their posts in the topic For a certain set of n numbers, where n > 1, is the average ugimba 9 11 Mar 2009, 17:24
Display posts from previous: Sort by

For a certain set of n numbers, where n>1, is the average

  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®.