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# Standard Deviation-GRAPH?

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Director
Joined: 25 Oct 2008
Posts: 546
Location: Kolkata,India

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23 Jul 2009, 02:38
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http://en.wikipedia.org/wiki/File:Stand ... iagram.svg

Guys,I purchased the new PR 1012 and came across this concept of standard deviation.I wanted to know if this is tested on the GMAT cos I have'nt come across sums using this concept before.However,the sums in the book are largely based on this.

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Manager
Joined: 03 Jul 2009
Posts: 103
Location: Brazil

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23 Jul 2009, 07:10
I have never seen a GMAT question asking to calculate the standard deviation.

HOWEVER, I have already saw dozens of GMAT questions that involve the concept of standard deviation. Without understanding what it is, it is not possible to resolve those questions.

http://gmatclub.com/forum/standard-devi ... 81018.html

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Re: Standard Deviation-GRAPH? &nbs [#permalink] 23 Jul 2009, 07:10
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