GMAT Prep Practice Test 2

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rashmi.kaushal: Senior | Next Rank: 100 Posts; Posts: 62; Joined: Tue May 06, 2008 1:57 am; Thanked: 4 times

by rashmi.kaushal » Sun Jul 25, 2010 1:21 am

What is meant by 1 standard deviation of the mean ?

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Source: Beat The GMAT — Problem Solving | Sun Jul 25, 2010 1:21 am

selango: Legendary Member; Posts: 1460; Joined: Tue Dec 29, 2009 1:28 amFollowed by: 7 members; Thanked: 135 times

by selango » Sun Jul 25, 2010 1:33 am

1 SD of the mean-->bw mean-1sd and mean+1sd

bw 9.7 and 10.3

There are 6 numbers within the limit.

6/8*100=75%

Pls refer this attachment.

--Anand--

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kvcpk: Legendary Member; Posts: 1893; Joined: Sun May 30, 2010 11:48 pmFollowed by: 7 members; Thanked: 215 times

by kvcpk » Sun Jul 25, 2010 2:20 am

selango wrote:1 SD of the mean-->bw mean-1sd and mean+1sd

bw 9.7 and 10.3

There are 6 numbers within the limit.

6/8*100=75%

Pls refer this attachment.

Good One Anand!!

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selango: Legendary Member; Posts: 1460; Joined: Tue Dec 29, 2009 1:28 amFollowed by: 7 members; Thanked: 135 times

by selango » Sun Jul 25, 2010 2:29 am

Wow...getting compliment from Titan

--Anand--

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gmatmachoman: Legendary Member; Posts: 2326; Joined: Mon Jul 28, 2008 3:54 amFollowed by: 2 members; Thanked: 173 times; GMAT Score:710

by gmatmachoman » Sun Jul 25, 2010 2:31 am

selango wrote:Wow...getting compliment from Titan

Yeah Praveen has become a Titan..and I was the very first to congratuate him...Hey actualy he has done a fabulous work..!!

Anand..U r also awesome..great replies & great posts frm ur end too!!..Congrats!

R&D on GMAT algorithm:

https://www.beatthegmat.com/r-d-on-gmat- ... tml#305739

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selango: Legendary Member; Posts: 1460; Joined: Tue Dec 29, 2009 1:28 amFollowed by: 7 members; Thanked: 135 times

by selango » Sun Jul 25, 2010 2:41 am

gmatmachoman wrote:
selango wrote:Wow...getting compliment from Titan

Yeah Praveen has become a Titan..and I was the very first to congratuate him...Hey actualy he has done a fabulous work..!!

Anand..U r also awesome..great replies & great posts frm ur end too!!..Congrats!

OMG..what a day!!!!compliment from another GREAT titan

--Anand--

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kvcpk: Legendary Member; Posts: 1893; Joined: Sun May 30, 2010 11:48 pmFollowed by: 7 members; Thanked: 215 times

by kvcpk » Sun Jul 25, 2010 2:43 am

gmatmachoman wrote:
selango wrote:Wow...getting compliment from Titan

Yeah Praveen has become a Titan..and I was the very first to congratuate him...Hey actualy he has done a fabulous work..!!

Anand..U r also awesome..great replies & great posts frm ur end too!!..Congrats!

I will definitely remember my Titan Post, because the 1000th post I posted was a reply to machoman's problem on fibonacci series, Still I wonder what the solution to that problem is..

Agree with Machoman- Anand is really doing good on the math forums.. Keep up the nice work Buddy!!

Needless to say that Machoman is rocking on BTG

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