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Forumulaes for SD and Mean , Median propblems

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Forumulaes for SD and Mean , Median propblems [#permalink] New post 12 Sep 2007, 05:25
Guys,

Can any one of you help me with formulaes I need to know to solve standard deviation, mean , median problems

I ran ito a question in GMAT PREP

Given Mean and values that are 2 SD below the mean and 1 SD above the mean.. What is the value of the median..

I saw the same question solved in the GMATCLUB but cant seem to find it..

Thanks again!!
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Re: Forumulaes for SD and Mean , Median propblems [#permalink] New post 12 Sep 2007, 08:05
beatgmat wrote:
Guys,

Can any one of you help me with formulaes I need to know to solve standard deviation, mean , median problems

I ran ito a question in GMAT PREP

Given Mean and values that are 2 SD below the mean and 1 SD above the mean.. What is the value of the median..

I saw the same question solved in the GMATCLUB but cant seem to find it..

Thanks again!!



http://www.gmatclub.com/forum/t52054

always go to search and search for the post that you are looking for by putting a key word.
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Re: Forumulaes for SD and Mean , Median propblems [#permalink] New post 12 Sep 2007, 10:41
beatgmat wrote:
Guys,

Can any one of you help me with formulaes I need to know to solve standard deviation, mean , median problems

I ran ito a question in GMAT PREP

Given Mean and values that are 2 SD below the mean and 1 SD above the mean.. What is the value of the median..

I saw the same question solved in the GMATCLUB but cant seem to find it..

Thanks again!!


Learn the bell curve to understand the nuisances of SD
Re: Forumulaes for SD and Mean , Median propblems   [#permalink] 12 Sep 2007, 10:41
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Forumulaes for SD and Mean , Median propblems

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