Sets A and B have the same number of terms, is the standard : GMAT Data Sufficiency (DS)
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 09 Dec 2016, 03:01

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Sets A and B have the same number of terms, is the standard

Author Message
TAGS:

### Hide Tags

Manager
Joined: 06 Aug 2011
Posts: 59
Concentration: Entrepreneurship, Finance
GPA: 3.87
Followers: 0

Kudos [?]: 18 [0], given: 1

Sets A and B have the same number of terms, is the standard [#permalink]

### Show Tags

12 Nov 2011, 17:05
00:00

Difficulty:

(N/A)

Question Stats:

42% (01:57) correct 58% (00:49) wrong based on 12 sessions

### HideShow timer Statistics

Can anyone explain this one to me? Maybe I'm not understanding what a set is?

"Sets A and B have the same number of terms, is the standard deviation of set A greater than the standard deviation of set B?"

1. The range of set A is greater than the range of set B.
2. Sets A and B are both evenly spaced sets.
[Reveal] Spoiler: OA

Last edited by Stoneface on 12 Nov 2011, 17:43, edited 1 time in total.
Manager
Status: livin on a prayer!!
Joined: 12 May 2011
Posts: 124
Location: Australia
Followers: 0

Kudos [?]: 32 [0], given: 1

Re: Help with Veritas question. [#permalink]

### Show Tags

12 Nov 2011, 17:39
Stoneface, the image isn't showing up. Can you upload it to another site or just type out the question?
_________________

Aim for the sky! (800 in this case)
If you like my post, please give me Kudos

Manager
Joined: 06 Aug 2011
Posts: 59
Concentration: Entrepreneurship, Finance
GPA: 3.87
Followers: 0

Kudos [?]: 18 [0], given: 1

Re: Help with Veritas question. [#permalink]

### Show Tags

12 Nov 2011, 17:44
Sorry about that. I just retyped the question.
Senior Manager
Joined: 11 May 2011
Posts: 372
Location: US
Followers: 3

Kudos [?]: 94 [0], given: 46

Re: Help with Veritas question. [#permalink]

### Show Tags

12 Nov 2011, 18:23
Good question. At first glance, I'll go for answer D.
I'll prefer to hear answer form others since OA looks like C.

Cheers!
_________________

-----------------------------------------------------------------------------------------
What you do TODAY is important because you're exchanging a day of your life for it!
-----------------------------------------------------------------------------------------

Manager
Joined: 06 Aug 2011
Posts: 59
Concentration: Entrepreneurship, Finance
GPA: 3.87
Followers: 0

Kudos [?]: 18 [0], given: 1

Re: Help with Veritas question. [#permalink]

### Show Tags

12 Nov 2011, 18:27
Would you mind telling why?

I originally chose B, though I cannot figure my reasoning. If the range differs, then the standard deviation will obviously differ. Then again, how could two sets with different ranges be evenly spaced? I know I'm missing someting simple.
Manager
Status: SC SC SC SC SC.... Concentrating on SC alone.
Joined: 20 Dec 2010
Posts: 240
Location: India
Concentration: General Management
GMAT Date: 12-30-2011
Followers: 3

Kudos [?]: 60 [0], given: 47

Re: Help with Veritas question. [#permalink]

### Show Tags

12 Nov 2011, 19:11
My pick is A.

But working on different examples may be might prove C.

Option B alone cannot win because,
Evenly spaced sets vary in Standard deviation if the difference between the numbers in the set varies.
Ex: set A: { 2 4 6 8 10 }
set B: { 1 2 3 4 5 }
Both are evenly spaced sets but here SD of A increases.

But some where i have learnt that SD of a set with larger range is always bigger than the other.
_________________

D- Day December 30 2011. Hoping for the happiest new year celebrations !

Aiming for 700+

Kudo me if the post is worth it

Manager
Joined: 06 Aug 2011
Posts: 59
Concentration: Entrepreneurship, Finance
GPA: 3.87
Followers: 0

Kudos [?]: 18 [0], given: 1

Re: Help with Veritas question. [#permalink]

### Show Tags

12 Nov 2011, 20:34
My goodness, I was reading the problem wrong. I was interpreting it as "equally" spaced, as in one set would be {2, 4, 6} and the other would be {5, 7, 9}.

Par for the course...
Re: Help with Veritas question.   [#permalink] 12 Nov 2011, 20:34
Similar topics Replies Last post
Similar
Topics:
Both a set S and a set P have the same number of elements. Is a standa 4 10 Sep 2016, 20:42
1 Two sets, A and B, have the same number of elements 3 01 May 2013, 21:55
17 If sets A and B have the same number of terms, is the 7 20 May 2012, 21:48
3 Set A and B are 2 sets of numbers. A has a standard 7 23 Sep 2010, 17:39
13 Each term of set T is a multiple of 5. Is standard deviation 12 04 Sep 2009, 17:29
Display posts from previous: Sort by