What is meant by 1 standard deviation of the mean ?

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.

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!!

Wow...getting compliment from Titan

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!

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

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