1. 

   Anjum Member

   Ques
   
   
   Soultion:-
   
   
   
   Please help me in understanding How did we get the highlighted part.
   
   Thanks

    

   Anjum, Mar 5, 2017

   #1
2. 

   Bharti Singla Senior Member

   They have just defined the basic formula of S² first(sample variance). But solved the given equation by taking the RHS of it.

    

   Bharti Singla, Mar 5, 2017

   #2

   John Lee likes this.
3. 

   Anjum Member

   thanks

    

   Anjum, Mar 7, 2017

   #3

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